428 cobra jet head flow numbers.  390 heads will have 6090 h stamped between the spark plugs , a 428 will have 6090 -N between spark plugs showing it is a cj . 00: REPRO: ea.  Dec 15, 2021 · The 1969 Ford Mustang 428 Cobra Jet rumbles with a 335-horsepower 428 CID Cobra Jet V-8 big-block.  Though over-square with a 4.  Motorsport Stainless Valves.  High riser type Intake . 984 stroke, the 428 still produced a flatter torque curve than the high-strung 427, an admittedly stronger engine . 050'' bores on 390 engines. 130" to 4.  16 bolt pattern on exhaust side. 34" x 1.  Kaase Stage 2 Full Port Work Includes: Competition Valve Job.  It also had ram-air induction and a functional hood scoop. 
055/1. 6:1 compression.  1965 Ford F100 Truck Pro built 428 Cobra Jet Engine Hot Rod Pro Touring or Drag for sale.  The cast iron cylinder heads used for both 428 Cobra Jet and Super Cobra .  Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby.  First you have to start with the 428 v. , "NEW" accurate details, including steering clearance indents, original FORD markings & internal baffles, with correct drain plug, requires DOAZ-6710-A Gasket: $165.  428/429 Cobra Jet 1968-1971.  428 cubic inches (428-Based) This is a stock style setup for the 428FE engine, featuring a 3.  May 07, 2015 · Flow bench used, location: Intake valve brand, head size, stem size: Ferrea, 3/8, 2.  One for 428 CJ after that date, and two for 428 Super Cobra Jet before and after that date.  Bear Block Motors (BBM) is proud to introduce the incredible new BBM FE cylinder head for 390, 427, and 428 big-blocks with 2.  Custom Ford 6049 C-460 Heads.  The new GT500 KR would serve as Ford’s flagship performance car, standing head and shoulders above prior Shelby models.  He has chosen the '61 390 High Performance head casting for his 428 project.  Apr 13, 2020 · Retail price to buy: The retail price for the current Cobra Jet Mustang is $130,000 before options. v All numbers are on the frame as well as door tag and buck tag. 09 / 1.  Apr 15, 2019 · The Mustang 428 CJ was a mid-year introduction mostly intended for drag racing, so that’s why Ford sold it in modest numbers.  All 428CJ's came with a hydraulic camshaft, but the 1966 PI engine had a solid camshaft installed.  2014 Ford Mustang Cobra Jet.  The 428 Cobra Jet was a performance version of the 428 FE.  Pioneered in 1967 as a stripped-down Holman and Moody prepared drag-ready Mustang for Tasca Ford, the 428 short block with 427 heads christened the “KR-8” flawlessly .  Rocker shaft stud kit #6009 provides better rocker shaft retention and is highly recommended for use with Edelbrock FE heads.  I have an early 68 428 CJ block with a date code of 7M6 which is 6 Dec of 67, this is the 1st week the cj blocks were cast so this is very rare and correct for 68 Shelby and cobra jet Torino The block has a fresh bore of 40 .  429-460.  Feb 21, 2014 · LaPlata, MD.  Performance is slightly better than a 428 Cobra Jet cylinder head, coupled with better availability and a cost that is reasonably close to the price of repairing and upgrading aged factory castings.  It also comes with power steering and brakes, as well as the optional Drag Pack that allows for a 3. 84".  76cc heads have vertical exhaust bolt pattern only.  Most powerful .  Priced new at $91,900 under Ford Racing part-number M-FR500-CJ, the 50 Cobra Jets .  These new Ford FE heads fill the gap between your stock iron heads and mega-buck racing heads designed for big-inch FE engines . 
09int. 19" intake and 1. 6:1 compression pistons, and a cast-iron version of Ford’s aluminum Police Interceptor intake topped off .  However, the Cobra Jet head has larger intake ports and both intake and exhaust valves.  Location: Concord, North Carolina 28027.  Sep 15, 2020 · Bruce Johnson. 60" x 1.  The ratings may not be comparable to flow ratings from another flow bench.  Police Interceptor & Cobra Jet: 1UA '69-'70 428 c.  Steve25 at PY suggested using a 1.  C4AE-9425-F.  Kaase Boss Nine Semihemisperical Cylinder Heads.  My 428 SCJ has original heads, high riser manifold, 10. 7 cc Part number: C8AZ-6049-K Aug 10, 2018 · The 428 came in 1966, with a more production-friendly design, and it found its mark both as a street performance engine, as well as a race package, with the popular Cobra Jet (CJ) and Super Cobra Jet (SCJ) offering some serious power with a variety of cam, carburetor and compression ratio options.  Rocker shaft stud kit #6009 provides better rocker shaft retention and is highly recommended for use with Edelbrock fe heads.  Nov 01, 2008 · This Ford 428 Cobra Jet features a 465ci motor, assembled from a 428 block, a Comp Cams . .  Jan 25, 2012 · I've driven most of the Muscle Car dream cars that guys obsess over, a 427 SOHC powered Galaxy two door, 428 Cobra Jet Mustangs, Boss 429, Boss 302, Boss 351, 429 CJ Torino, Big Block powered Chevelles, 426 powered Challenger, 440 Road Runner, 427 'Vette, 400 Firebird, 455 Trans Am, 421 (super duty)LeMans to name a few. The flow data shown at right shows a comparison between out of the box Edelbrock heads and factory Ford 428 Cobra Jet heads.  Like all Blue Thunder reproductions, this manifold offers greatly improved flow characteristics over the original; while it resembles the original 60’s Ford item, it will outperform it’s older counterpart by a wide margin.  Stage 1 - Complete $3250.  Intake Flows 355cfm @ .  The body is very straight and clean of rust.  Ford Pro Stock HEMI Heads.  Launched in 1963, the 427 engine actually measured 425.  Flow Number Comparison between SuperFlow SF-600 and SuperFlow SF-1020 Flow Benches Flow Comparison Between Factory 428 Cobra Jet Heads and Edelbrock FE Heads Comparison Between Hooker Adjustable Race Headers and Factory Ford 427 Fairlane Exhaust Manifolds on 482" FE Important notes: direct bolt-on heads for 1961-76 390-427-428 Fords.  429-460 Engine Rebuilding.  430-462 MEL.  Stock #: 6759-CHA.  Heads were ported and polished and treated to hardened valve seats and .  The Ford FE engine was found on a a very limited run of 1966 and 1967 Ford muscle cars; including the Mustang, Cougar, Falcon, Galaxie, and even some AC/Shelby Cobras. 7-75.  The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles.  I ended up buying all the original hardware for a '70 428 Cobra Jet from Mansfield Mustang.  The 428 Cobra Jet head is virtually the same casting as a 427 Medium-Riser in terms of valve and port size. 
 The second line is the Holley List # 4168. 6:1, the 428 CJ made use of 427 cylinder heads, upgraded connecting rods, and an iron intake manifold matched with a Holley .  Car & Driver thought the horsepower rating on this engine was under-rated.  may be different than other flow benches also.  May 13, 2015 · Created by mating a production 428 FE block with 427 low-riser heads, a 390 GT cam, 10.  Featuring a compression ratio of 10.  Ford Cylinder heads casting and Mustang Cylinder heads casting. 5 428 CJ car.  The first configuration was the C8OZ-6049-F (C8AE-6090-J engineering number) 427 head which was approved on March 23, 1967, and continued to evolve through several revisions until early November 1967.  This was not the semi-hemi Boss 429 engine, but a fresh design with thin-wall construction and canted-valve heads. i. 0 L) Super Cobra Jet engine.  Casting numbers on FE and FT (Ford Truck) cylinder blocks since 1966 no longer indicated the type of block, but became a leftover formality from earlier days when the foundry had far fewer block variations. 45 times the distance between 2 and 3 points.  On April 1, 1968, Ford unveiled perhaps its most famous line of engines, the 428 Cobra Jet.  410 and 428 engines are externally balanced.  It had ram-air induction and breathed through a functional hood scoop.  The engine had a Ram Air option, a 735 CFM Holley four-barrel carburetor although the option showed no quoted difference in horsepower rating.  The R-code Mustang was very rare and is highly valued and sought after. 24" C4AE-9425-F Originally I just had breathers on both valve covers.  The SCJ block is the same as a CJ.  Titanium Retainers.  429-460 Short Blocks.  Note: 72cc chamber heads have both vertical and diagonal exhaust bolt patterns.  MakeFord.  Ford FE Casting Numbers Blocks. 37 correction factor to his numbers for 28" of .  On the left is the 428 Cobra Jet . 66" exhaust valves. ) Later, a flat-black rear decklid spoiler and a set of rear window louvers were added as dress-up options. 
 The 429 Cobra Jet (CJ) and Super Cobra Jet (SCJ) were rated at 360 and 370 hp respectively. 082-2. 65" versus 2.  Head exhaust that provide excellent breathing. 30 ratio axles use some different lower-end pieces as explained under 428 Super Cobra Jet.  Curiously, the 428 Police Interceptor got an aluminum intake.  "Pro-Filer" Big Block Ford Heads.  Cobra Jet manifolds didn’t differ much from the 390 High Performance manifolds since they were installed in similar vehicles (Mustang, Cougar, Fairlane, Torino, and Cyclone) with limited space.  Compression ratio for the street is 9.  the head casting number should be C8OE-N the intake would be C8OE-C and the block casting number means nothing.  Sep 27, 2019 · The official Ford Mustang 428 Cobra Jet was fitted with the police interceptor V8, though in a slightly different form than the Tasca Ford version.  May 22, 2015 · He had a 428 Cobra Jet balanced and blueprinted, then assembled around a Comp Cams dual-duration 3/4 cam and valvetrain. 097 inches Combustion chamber volume: 72.  It outpowered the smaller 390-cube V8, the top Mustang engine in 1967, thanks to its 335 horsepower, offering far more power than the smaller 375 horsepower displacement.  Priced new at $91,900 under Ford Racing part-number M-FR500-CJ, the 50 Cobra Jets started life as lightweight . 0:1 with aluminum heads.  Mar 13, 2006 · The GT heads are special only because of the extra bolt holes on the exhaust side, otherwise are identical to any other low performance FE head of the same model year.  Cobra Jet.  How Do I Identify A 428 Super Cobra Jet? Remove one spark plug, take a stick or dowel, and measure the number of strokes on the cylinder, and you can confirm its identity as a 428.  Current customer rating: (2.  The scoop mated to a special air cleaner with a vacuum-actuated butterfly valve that funneled air directly . 50: N.  Feb 14, 2011 · 70 Sportsroof, 427 FE, 489 cid, 10.  It was offered with the C6 automatic or the 4-speed manual transmission, with three differential ratios on offer, uprated front shock towers, front disc brakes, a functional hood scoop and a “C .  Dec 01, 2000 · What gave the 429 Cobra Jet its aggressive attitude were cylinder-head port size and a hot cam profile. 34" rectangular ports and big valves 2. 73" exhaust valves.  The casting number is on the right (passenger) side of the block, in the front.  A complete cast iron 428 Cobra Jet weighs about 650 pounds, and a typical performance FE with aftermarket aluminum heads, water pump, and intake manifold, plus steel tube headers, comes in at just under 500 pounds.  I thought I would share, here's the latest motor build on one of my cars, an original, early, 1968. 
 Nicknamed “Mach 1,” the base model came without A/C, power steering, and power brakes, but it could certainly make some noise on the drag strip! The newly-minted “Drag Pack” option was available.  428 with 425 bhp - $8500+ 427 Side-oiler with 450 bhp - $16,000 ; 427 All aluminum engine from Shelby - $25,000 ; All engines are quite streetable, with 800-1000 rpm idle and good response over the entire range.  #350-6008 can be machined to accept 2.  The gnarly 428 Cobra Jet retuned for 1970 but the big block 390-ci FE engine was dropped. 5L engines. 34".  This included a grommet that goes into the screw on breather hole in the right valve cover, a PCV valve and molded hose.  Bid for the chance to own a No Reserve: 1968 Ford Mustang GT 428 Cobra Jet 4-Speed at auction with Bring a Trailer, the home of the best vintage and classic cars online.  at the . 150/1.  Stage 2 ported heads (428-455 cubic inch motors) At 245 cfm (at 28"), our Stage 2 "D"-port heads' intakes flow comparably to factory Ram Air IV heads, while our exhaust ports are lightly cleaned-up.  The 428 Cobra Jet is cast iron block and head construction.  Oct 01, 2021 · Original Ford big block FE 428CJ cylinder heads - one pair.  scj will have a shape of cookie cutter or a hatchet shaped ballancer for it is extrenally ballanced . 7:1 compression (according to the original owner and assembler of the engine), Comp Cams solid lifter cam (I think 280 is grind number if I remember correctly) and roller rockers.  Launched in April 1968, it was built on a regular production line using a variety of cylinder heads combined with a 735 CFM Holley four-barrel carburetor.  The air horn of the C8OF-951-AB for a 1968-1/2 428 CJ with automatic transmission.  The 428 short-block used police interceptor heavy-duty connecting rods and was topped by 427 "low-riser" cylinder heads (very similar to Tasca's 406 pieces), and a . 980" stroke and bore sizes ranging from 4.  One used for normal 428, 428 Police Intercepter, and 428 CJ before 12/26/69.  Kaase P-51 Cylinder Heads.  The block and heads were professionally disassembled, cleaned, inspected, and reassembled.  The engine is one of a kind - A professionally built FE 428 Cobra Jet engine with less than . 097" dia.  the 428 CJ.  The 428 cu in (7.  Dec 20, 2021 · The first Shelby GT500KR came out in 1968, powered by the then-new 428 Cobra Jet V8 rated at 335 hp.  Views: 3441.  Introduced in 1968 and discontinued in 1976, the Torino holds a special place in the pantheon of muscle cars .  . 65 Valve springs brand, part number, specs: Comp 914-16 Retainers and locks brand, part number, specs: Comp 741/609 Rocker arm brand, type (adjustable or non-adj), material, ratio: Harland Sharp Apr 13, 2020 · Retail price to buy: The retail price for the current Cobra Jet Mustang is $130,000 before options. 
 Times were different back then, before CAD, CAM, and all those other acronyms. 75 inches on the exhaust.  However, in April of 1968, the 428 cubic-inch Cobra Jet equipped, Shelby Cobra GT500 KR was introduced.  The “R” code engines were intended to be drag racers.  The best way to tell if it is a 428 is to look at the crank a 428 will have 1U stamped .  I think the main purpose would be the air flow comparison between the different heads.  This carb was manufactured in 1968, 3rd month (March) and 4th week (of March).  Very rare factory Cobra Jet Mustang needing restoration Price: $42,000 SOLD! For sale is a genuine 428 Cobra Jet Engine.  FE Specialties dyno stats-check out the FE engines and their stats on pump gas: 428 FE Ford, 454 BB Ford FE, & 490 FE Fords- Built in Sacramento, CA and shipped worldwide.  Because the Cobra Jet head was intended mostly for compacts and intermediates like Mustang and Fairlane, exhaust port bolthole configuration is different, with horizontal bolt bolts as well as vertical due to shock-tower interference.  JBA Performance Exhaust 6654S 1 3/4" Header Long Tube Stainless Steel 67-70 Mustang 390/427/428 Cobra Jet Limited Supply: only 1 remaining Availability: Discontinued. 91-geared Traction-Lok differential. s. 30:1 gear--which would be the driving force behind the Drag Pack package, so named beginning in February 1969.  Whether the kit is intended for stock replacement or racing, various levels of compression will allow for improved performance with emphasis on top-end power and high RPM.  It was originally ordered from a dealership in NJ as a race car, the quickest combination at the time, a zero option, radio delete, 4. 0 L) Cobra Jet engine which was officially rated at 335 hp all of these Mustangs were issued R codes on their VINs.  Aside from being ported and polished, the Cobra Jet heads have been fitted with Chevy valves measuring 2.  Nov 02, 2016 · Trick Flow Introduces New 390-428 Ford FE Heads at SEMA.  428 Cobra Jets coupled with a 3.  All FE's after 65 the casting numbers don't mean anything there have been 390's with 428 numbers and 390's with 66-427 stamped on the back.  Mar 18, 2021 · Ford had raised the bar when it equipped the mid-size Torino Cobra with the 428-4V engine.  Ford's 428 Cobra Jet engine had many drag racing successes during the 1968 and 1969 racing seasons, but as time went on racers found themselves needing more power to .  View Result.  The.  Production Numbers : 1968: Fairlane 4-door sedan - 18,146 Fairlane hardtop - 44,683 Fairlane 500 4-door sedan - 42,930 Painted in the one-year-only shade of Grabber Blue, this Cobra Jet is No.  Lot #58,964.  It’s difficult to convert a standard Ford 390 into a 427 or a 428, but you can stroke it out and push respectable power with the right cam, heads, and a solid fuel and ignition system.  Aug 05, 2007 · Thanks for the very interesting info, but I do not have a GT engine.  chambers with smaller ports. 91 or 4.  The same holds true for the C8AE-J, C8AE-N, and C8WE-H 427 Low Riser heads of the period Performance is slightly better than a 428 Cobra Jet cylinder head, coupled with better availability and a cost that is reasonably close to the price of repairing and upgrading aged factory castings.  Shelby Ford Mustang 289 302 351 390 406 427 428 429, K code hipo, cobra jet, Boss, Intake manifold, Exhaust manifolds valve covers gaskets, classic race vintage images pictures.  The differences for the SCJ were: 1) The beefer 427 "LeMans" connecting rods.  Sep 03, 2017 · 428 Cobra Jet; Ford presented the legendary Cobra Jet as a mid-year introduction in 1968 as a new muscle car engine from Ford.  Engine Smog pumps pulley brackets.  This 1968 Ford Torino is equipped with a 428 Cobra Jet engine and only 660 were produced. 
 Ford retained a familiar moniker for the hottest versions, and built a new muscle car around them: the Torino Cobra. 08"/1. -----How did you guess.  2 X 4V .  428cj has a round weight for it is internally ballanced .  Original dark green with Ivy Gold interior. 09 Exhaust valve brand, head size, stem size: Ferrea, 3/8, 1.  PowerPort® 175 Cylinder Heads for Ford 390-428.  Flow Comparison Between Factory 428 Cobra Jet Heads and Edelbrock FE Heads « on: July 09, 2012, 04:24:58 PM » Could it just be the brief but greater intake flow flow where the stock CJ Head intake port out performs the Ed Head comes from the CJ being simply a larger hole to breath through which pays no attention to quality vs quantity. 55-inch . 200/1.  Like all of the first 50 Mustang Cobra Jets Ford built in 1968, this one features an all-black vinyl interior.  428 Cobra Jet.  Head and Block Specs.  Oct 27, 2016 · The Cobra Jet engines, equipped with open chamber 4V heads and my revised version of the Cobra Jet camshaft, shall achieve higher output than engines equipped with quench chamber 4V heads due to (1) improved air flow at low valve lift as a result of unshrouding the valves and (2) due to opening the intake valve significantly earlier due to .  Roller Springs.  429-460 Power Kits.  Kaase P-38 Cylinder Heads.  May 13, 2016 · All Cobra Jet carburetors use these plates.  Dec 13, 2018 · To keep the insurance hawks at bay, horsepower numbers for the CJ's were underrated at 335, but racers knew it was more like 400 hp.  428 cobra jet v8.  If an V or W axle was ordered (3.  The intake ports measure 1.  You take this one to the track.  Cobra Jet Boss Shelby SAAC Registry links.  head, which is little more than the 390 GT head (right) with minor changes.  428 cobra jet forum.  The 428 CJ cylinder heads feature an unmachined chamber of 73-76cc, 2.  The car is painted in Meadowlark Yellow with a black interior. 34" x 2.  The Ford Torino Cobra Home Page.  The cast iron cylinder heads used for both 428 Cobra Jet and Super Cobra Jet engines from 1968 through 1970 (part number C8OZ-6049 … Casting number: C8OE-6090-N Intake valve diameter: 2.  Shelby was soon to replace the 428s in the GT500s with 428 Cobra Jet engines -- identifying the CJ versions as GT500KRs, which some say was in deference to Tasca's contribution.  in.  Lot #46,812. d. 
 By Mike Magda August 25, 2014.  Apart from 50 Fastbacks with CJ engine and other versions, Ford offered the Cobra Jet in convertible form.  What I needed was a PCV system (Positive Crankcase Ventilation).  Learn More.  #TENSEMA16.  7 of the 50 built for 2012.  390 406 427 428 All off highway operations. -1.  The heads were removed from a running 428CJ motor .  Jul 20, 2021 · 428 CID Cobra Jet 335 hp.  Jul 29, 2021 · Enter The Cobra Jet.  Factory 428 "R" Code Original Cobra Jet engine is gone but it is equipped with a non running 427 There's some rust underneath and the rear quarters were flared.  Flow Bench Testing.  Bid for the chance to own a Original-Owner 2014 Ford Mustang Cobra Jet at auction with Bring a Trailer, the home of the best vintage and classic cars online. 585 inches and .  Aluminum.  Feb 14, 2011 · 428 Cobra Jet Exhaust Manifolds vs.  Valve size is slightly larger (2.  Bid for the chance to own a 1970 Ford Mustang Mach 1 428 Super Cobra Jet 4-Speed at auction with Bring a Trailer, the home of the best vintage and classic cars online.  Jan 20, 2008 · Does anyone know if in fact the C6AE-J or R heads were installed on the 1967 shelby non (cobra jet 428)using the gt 390 exhaust manifold,i was looking on the shelby websight that shows this head as a 428 PI. O.  Hood Scoop. 35. 190".  Mercury also added a new model to the Cyclone line: the Cobra Jet (CJ).  Replacing the willing but aged 428-cid V-8 was a new 429-cid mill.  Combustion chambers are engineered for optimum swirl and quench right out of box. 0 L) Cobra Jet engine continued unchanged in the 1969 and 1970 model years and continued to be advertised at 335 hp (250 kW; 340 PS). 15, while a Boss 429 Cobra Jet HO would set you back a whopping $1,208.  The pressure from Chevrolet’s 427 V8, Mopar 440 and 426 Hemi, as well as Pontiac’s 421 and 428 V8 made the 427 Medium Risers obsolete.  Ford 428 Cobra Jet CJ engine - $2500 (Yuba City) View larger image.  The Cobra Jet heads have been given a minor bowl clean-up, but are otherwise stock. 
 The Cobra Jet's engine was a 428 cu in (7,014 cc) which generated 335 hp (250 kW).  Exhaust ports measure 1.  429-460 Complete Engines.  The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs.  The Satin Black Hood Scoop for the 1968 is unique, as it has 8 mounting studs, where the Eliminator Scoop in 1969 and 1970 used 10 mounting studs. 55") on the Cobra Jet head.  428 cobra jet motor. 10, A/C.  The 428CJ heads in particular have much better exhaust ports than any of the 352 / 390 heads of any year plus larger valve sizes 2.  basic 6675: 67/70: 390/428: OIL PAN, 5qt. 66 diameter.  Police Interceptor & Cobra Jet The result, of course, was introduced in April 1968 as the 428 Cobra Jet, and though the details of its specs differed a little from Tasca's XR-8 powerplant, it was quite similar.  Originally I just had breathers on both valve covers.  For Sale is a beautifully crafted 1965 Ford F100 Styleside Pickup.  <p>Ford FE 428 Cobra Jet Cylinder Heads C8OE-N. 700 lift @ 28" H20.  The third line is the three digit date code of 834.  The C8AE-H flow 200-220 cfm .  JBA Performance Exhaust 6655SJT 1 3/4" Header Long Tube Stainless Steel 67-70 Mustang 390/427/428 Cobra Jet Titanium Ceramic Not Available Availability: This product is Legal for use on 1974 and older non catalyst equipped vehicles and is considered a replacement part per Califor Its counterpart on the option chart was the now highly prized 428 Super Cobra Jet, also rated for 335hp and 440-lbs.  (Left to right) Tony Rainero, Domenic Garofali, and Bruce Sizemore talking about "Canadian" heads at the 50th Anniversary Ford Performance Cobra Jet Reunion on August 25, 2018.  Apr 08, 2003 · Z95m6.  (A 428 Cobra Jet with the Ram Air “Shaker” was known as an “R-Code” version; those without it were “Q-Code” cars.  430-462 MEL Core Parts.  Feb 15, 2019 · The two-barrel 390 was good for 265 horsepower, the four-barrel stepped up to 325, and the Cobra Jet 428 provided just ten additional horses but a fair torque boost to go with it.  Aug 21, 2005 · The Cobra jet rating of 370 hp is very conservative!!! It was more like 415+! The Cobra jet power plant is a performance built engine and the TJ was more of a high torque pulling power monster built for big Fords. 90 or 4.  Building a poised but potent Ford small-block to swap into an early Mustang was the primary goal of this 428ci engine project.  The 1968 KR also .  with this set up engine made 565hp. 
 It was based on the regular 428 but included larger valve heads, the race 427’s intake manifold, and an oil-pan windage tray.  View all listings Notify me about new listings.  Aug 25, 2014 · Project 428 Pony Jet: Squeezing High Revs From a Street Windsor.  Presenting the PowerPort® 175 cylinder heads—specially .  valves), and the valves were closer together than on other FE heads so that the CJ heads would fit all FE block sizes.  Never raced, the Cobra Jet remains as delivered from Ford; the window net has never been removed from its box.  Found on a limited run of 1968-1973 Mustangs and Torinos as the 429/7.  Only rated at 335 hp and 440 foot pounds of torque but the price is a more reasonable $3,643, and this baby has a 4-speed and 3.  Being sold as is ! Look at pictures closely! </p><p>The springs and valves were removed and discarded .  The 428 CJ cylinder heads featured an un-machined chamber of 73-76cc, 2.  Apr 26, 2017 · Gilbert came up with a formula that combined high-flow 427-sourced cylinder heads with a police-fleet tough 428-cid rotating assembly.  In addition to their big-block V8 displacement and power, the R-code engine also had a Holley-4 barrel carburetor and a ram air hood that was functional.  Once you get past the casting numbers and date code, there's visual identification.  2) Cast iron PI (Police Interceptor) intake manifold.  I have an FE, which is the same as the 427 and 428 engines. 0 L Cobra Jet V8) During the mid-1968 model year, a drag racer for the street could be ordered with this optional 428 cu in (7.  “Cobra Jet” was created in Rhode Island by Bob Tasca of Tasca Ford with his combination of a high flow 427 cylinder head and a stout FE 428, which gave the engine its name. 06" intake valves and 1.  This is a direct bolt-on replacement for your 428 Cobra Jet, 427 Medium Riser, or 390 cu. 30 rear 4 speed car.  Pro Series Turbo Header Build Kits: Ford 429-460 Cobra Jet This turbo header build kit has everything you need to bring those Ford 429-460 Cobra Jet custom header together.  1968 Cougars equipped with the 428 Cobra Jet option came with a functional satin black hood scoop and matching black stripe.  For example, a 335 bhp, 428 V-8 would cost an extra $287. 660" dia.  390-428 FE Power Kits.  Cylinder Heads.  All 428CJ cylinder heads feature large 2.  390-428 FE Short Blocks. 132 bore to a 3.  Two were offered for 428 Super Cobra Jet before and after that date.  The only twist in acquiring this alternative R-coded engine was that a customer had to order one of two optional axle upgrades--either the 3.  of torque. </p> For sale is a genuine 428 Cobra Jet Engine. S: ea.  After that date Ford offered one crankshaft for 428 CJ. 02/1. 
 If you add up 980, 390,406 or 427, it means 3.  ModelFord Mustang S197 .  </p><p>Cast date is 8c26 on the one head it appears that the 6 was stamped backwards on the other .  Exhaust Flows 249cfm @.  This gasket compliments the larger oil passages that the new Cobra-Jet oil adaptors introduced: $ 7.  FE (330-428 SCJ) note: nearly all FE blocks have 352 cast on the front of them.  Obviously they will have to be reconditioned for your motor .  Also, the detail description is lacking, but the intent was to find the casting numbers, not precisely describe it.  428 cobra jet heads.  1969 Mustang Engine Information – 428 cubic inch V-8 (7.  Calibrations,set-up,etc.  1969 Ford Mustang Mach 1 428 Super Cobra Jet. 20 inches on the intake side and 1.  Noting that the 427-powered Galaxie got a considerable bump in performance from 1963 to ’64, Gilbert reached out to an engineering contact at Ford and determined that the performance increase was all due to .  18 of the 50 built for 2012.  The addition of high-performance cylinder heads, “header style” exhaust manifolds, a single Holley 735-cfm four-venturi carburetor and large intake and exhaust ports were the major performance features in the standard Ford 428 Cobra Jet engine.  It was based on the staid 428-cid big-car engine, but had larger valve heads and the race-brewed 427's intake manifold.  Jun 10, 2009 · FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - Ford 428 Cobra Jet Engine Block & Cylinder Heads - Can anybody tell me where I can a Ford 428 Cobra Jet Engine Block & Cylinder Heads,And can anybody tell me why the Ford 428 Cobra Jet is hard to find,Is due to the popularity of the engine make so hard to.  Each reflects the state of development for the 428 CJ heads the time they were created.  Both sets of heads use identical valve sizes, and were both tested with a clay radius on the intake port and a 1 3/4" pipe on the exhaust .  Jon Kaase Prepared Super Cobra Jet Ford Heads.  However, I was under the impression that the Cobra Jet manifolds were made for high-flow (back in the day), and were comparable to some of the modern day headers. 
 They only built 34 cars, which makes it one of the rarest Cobra Jet models Ford ever produced.  The valve train uses an overhead valve (OHV) system, with 2 valves per cylinder for a total of 8 per head. Also the NHRA blueprint spec shows this head as a shelby 428 shelby head. 66ex.  The readings may be 10% high.  Dates are 8F15 and 8G6.  Equally important, these heads can be significantly upgraded and extensively modified for high-performance street use and track duty.  Ford's engine package consisted of its own modified version of the 428 PI.  The Cobra Jet used heavier connecting rods with a 13/32 rod bolt and a nodular iron crankshaft casting #1UB.  Lot #65,620.  Important notes: direct bolt-on heads for 1961-76 390-427-428 Fords.  Mar 01, 2004 · Garrett has not chosen the 428 head or the 428 Cobra Jet head. 60 Valves Dual Springs 56cc Chambers Street Port 289/302/351W Aug 21, 2005 · The Cobra jet rating of 370 hp is very conservative!!! It was more like 415+! The Cobra jet power plant is a performance built engine and the TJ was more of a high torque pulling power monster built for big Fords.  engine.  There may be another 1966-67 marine variant and there are some 1966-67 truck variants that are not listed.  428 Cobra Jet-sized valves promote excellent flow for streetable power.  Price: $2,500.  This is a C8OF-AB.  The CJ is essentially a brand-new car; the factory-supplied hand tuner has never been attached and the throttle plate remains at the factory 50-percent setting.  The 1966– 1969 390 High Performance head (left) is often mistaken for the 428 Cobra Jet casting (right).  Engine block cam pistons rods ID. 
 In ’69 the 351 was good for either 250 or 290 horsepower, depending on its carburetor configuration, while the four-barrel 390 dropped somewhat to 320. 4 L) FE, and the 428 cu in (7.  I was only using a battery drill.  Police Interceptor & Super Cobra Jet: 1UB '69-'70 428 c.  A couple of optional side duties were also factored into the early discussions, such as serving as an EngineLabs dyno mule . 53 and a Ram Air 428 added $420. 5) based on 484 votes.  These 428 Cobra Jet-sized valves promote excellent flow for streetable power and will clear 4. 28" x 1.  Although the engine is a V-8, it is truly Y-shaped as the Crankshaft sits down . 5:1 with iron heads, 10. 73'' exhaust valves.  FE block casting numbers of the 428 CJ era will be found on the front passenger side of the block, if present. THANKS 428 Cobra Jets coupled with a 3.  71 F100 4x4 shortbed 445 FE, ported iron heads, ported RPM intake, Bullet custom solids, 1000 Holley Apr 27, 2009 · Hello all, I have just finished building a 428 CJ engine and while priming the oil system I observed too much oil flowing from the oil holes in the rockers (ie the holes drilled into the rockers that are to dribble oil to the pushrods and the valve tops).  A 351W 4V was optional as was a 390 cu in (6.  Trick Flow is at it again, Ford fans! This time Trick Flow is serving up a heaping helping of horsepower for the legendary Ford FE. 305 inches, respectively. 02"/1.  Mar 04, 2019 · Trick Flow Cylinder Head Twisted Wedge 11R 190cc Intake 2. 7:1, Erson valvetrain, KC ported Edelbrock heads, modified Massflo EFI, TKO-600, 31 spline 4.  Dished pistons with valve reliefs result in 10.  The Boss 302 V-8 cost $676. 30 locking ratio) on any Cobra Jet Mustang, included were engine improvements to make it more reliable on the strip.  She was raced from 1968 to 1974, then retired and put away for .  So if you want to cut and paste the Firing Order for the FE Ford's (352, 360, 390, 406, 427 and the 428) it is : 1-5-4-2-6-3-7-8 (Same as old school 260, 289, 302) Looking for the 429 and 460 Engines (they are about the same) Click 429-460 Ford Firing Order 1U '68-'69 428 c.  Like Tasca's original creation, the Cobra Jet mixed police interceptor parts with bespoke Ford performance gear to build on the 428's already-impressive performance. 
 May 23, 2006 · 995 Posts.  Jun 09, 2008 · 428 visual from 390 , look behind crank ballancer .  Kaase C-400, CHI cylinder heads.  Presenting the PowerPort® 175 cylinder heads—specially designed and engineered to deliver more go for 390-428 engines! The heads are a direct bolt-on for all 1961-76 engines.  Mar 07, 2018 · While it was second in displacement to the 428, the 427 was first in performance and the only ‘race-only’ engine in the FE family.  Lot #56,100. 00.  With a wide scope the Mach 1 with its luxuries and performance elements proved to be an irresistible proposition selling just over 110,000 units between 1969 and 1970.  The 428 Cobra Jet engines weren’t blessed with the 427’s abundant exhaust headers from the factory.  Stepping up to a Boss 302 or Boss 429 engine would buy you a decent used car.  Sponsored by Woodside Credit: Purchase for only $1,102 / mo.  Oct 06, 2020 · This gave birth to a 1970 Mustang Mach 1 powered by an R-code 428 Cobra Jet V8 engine with Ram Air, as mated to a close ratio four-speed manual transmission. 650 or 2.  Jan 17, 2021 · Very Rare 1969 Ford Torino GT 428 Super Cobra Jet Heads to Auction at No Reserve.  C8OE-N are the heads used on 1968-1970 428 Cobra Jet engines found in Mustangs, Torinos, and Shelbys.  Where customers buy one: Cobra Jet Mustangs can be purchased from any Ford dealer.  $109,995.  This header build kit has everything you need to bring that FE 428 High Rise custom header together.  428 cobra jet engine for sale. 96 unless you bought a Mach 1.  This car is listed for sale here on eBay at a price of $38,000 in Santa Rosa, California.  Headers.  Feb 13, 2004 · Cobra Jet engines received low-riser heads with a "rough-cast" combustion chamber (2.  The intake ports measured 1.  For sale is a genuine 428 Cobra Jet Engine. 0L engine, and some 1972-1997 Mustangs and Torinos as 460/7.  The modifications make Stage 2 heads a great choice for a serious street car or Pure Stock-type competition use.  Bid for the chance to own a 1969 Ford Cobra Hardtop 428 Super Cobra Jet 4-Speed at auction with Bring a Trailer, the home of the best vintage and classic cars online.  most I have seen made more like 320 HP as installed in the car and about 230 to 240 at the wheels.  428 cobra jet-sized valves promote excellent flow for streetable power.  The 390 High Performance has the same 2. 
 The cast iron cylinder heads used for both 428 Cobra Jet and Super Cobra Jet engines from 1968 through 1970 (part number C8OZ-6049-K) are easily identified by casting number and physical appearance The casting number, C8OE-6090-N, can be found in the recessed area between the middle two spark plugs as shown in the picture below.  Mar 09, 2007 · This list shows pretty nearly all non-performance FE head casting numbers. ft.  Aug 08, 2021 · The Ford 428 Cobra Jet was the high-performance version of the 428 FE engine that quickly overtook the low-revving 390 CID V-8 as the high-performance powerplant of choice.  The 390 GT has slightly larger.  The stroke count varies by 7700/1 or a 4240/2, or the 360/2 will get a 3 .  Port 2. 19'' intake and 1.  North platte river flow rates 14 .  3) An oil cooler However, in April of 1968, the 428 cubic-inch Cobra Jet equipped, Shelby Cobra GT500 KR was introduced.  This is the real deal and perfect to complete your numbers matching resto.  If you can get the casting number of the heads on your car now, we'll get you there. 98 cubic inches, but was deemed the 427 because this was the maximum engine displacement permitted by a few different race-sanctioning bodies at that time.  The car’s KR designation stood for King of the Road, and was used by Ford to portray the model’s superior status.  Sold for $70,500 on 1/12/22 42 Comments.  The 16-bolt pattern exhaust face is unique to these CJ heads.  Head-intake, and 1.  A 735 cfm Holley carburetor sits on a cast iron intake manifold.  next up you're driving a '68 428 powered Cobra Jet Mustang.  Then, on April 1, came the 1968 Ford Mustang 428 Cobra Jet.  Jun 25, 2020 · This “Ram Air” setup could be had on GTs and Mach 1s with 351s, 390s or 428s. 89 gears. 650 inch intake/exhaust valves with the lightweight 11/32 inch stems.  #2 · May 23, 2006. 0 L) Cobra Jet 4V with or without Ram Air, and even the introduction of the "drag pack" option with the modified 428 cu in (7.  Ad id: 809198458031530. 
 REALLY cool '68 Cobra Jet Mustangs.  #60089 can be machined to accept 2.  The system was a traditional camshaft in the block orientation using pushrods.  Nov 03, 2006 · COMP Cams supplied all of Bob's valvetrain needs with lift and duration numbers coming in at .  Aug 10, 2018 · The 428 came in 1966, with a more production-friendly design, and it found its mark both as a street performance engine, as well as a race package, with the popular Cobra Jet (CJ) and Super Cobra Jet (SCJ) offering some serious power with a variety of cam, carburetor and compression ratio options.  Feb 11, 2021 · The most notable Ford FE-based performance engines are the 427, the 428, and the 428 Cobra Jet.  Delivered from Ford in Race Red with the optional graphics package, this Cobra Jet Mustang is No.  Due to different piston weights, there are actually four different 428 crankshafts.  IMPORTANT NOTES: Direct bolt-on heads for 1961-76 390-427-428 Fords. 
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