difference between 428 and 428 cobra jet

Without a wink or a nod, Ford claimed the new CJ made 335 hp at 5,600 rpm and 445 lb-ft of torque at 3,400 rpm. The front maintained a full-width grille with an updated horizontally slatted grille, and, in the rear, the Cougar now came equipped with taillight lenses that were concave instead of convex. As a result, the 428 was less rev-happy but it gained a low-end torque punch that was absent in the 427. (REGISTERED USERS DO NOT SEE THIS POST/AD! Ford had produced a 428ci version of the FE engine for fleet use in police cars and also for some of the fullsize luxury cars. However, there have been multiple anniversary Ford Cobra Jets that have made sub-8 second quarter mile passes, showing there is serious room for modding. The 390 Mustang was getting abused at the drag strip by Chevrolets new 396 powered Camaro. I've heard this could be a Cobra Jet but I've also heard this might not be the case. With a few minor modifications, however, the 428 would really scream, and by the time the '68s came around, Ford was ready to rock and roll. In April 1968, Ford released its own version of the 428 engine and called it the Cobra Jet.. The program was engineered, designed, tested, validated, released, and certified between January 1967 and August 1968. The 1969 Mercury Cyclone continued on the Montego platform in the fastback form, and the GT was no longer a model, available as an appearance-only package. The Mustang now had company in the ponycar market, and the new Camaro was no slouch. Consequently, Ford used Holman Moodys 428 engine as the inspiration it desperately needed to help reclaim its rightful place at the top of the pony car market. A whole host of high-performance parts was available for the 396 from the Corvette larder, which further complicated matters in Dearborn. Typical Cobra Jet Crankshaft Several different cranks were used in 428 CJ and SCJ engines during the course of production. Also, there is an S between the 8 & the C Cobra Make, Engine: I Wish, Just an old truck with an FE, Cobra Make, Engine: Kirkham 427 (KMP 266); CAV GT40, also forged pistons,and an electronically balanced crank shaft on the SCJ;all reliability issues not HP ones. In order to keep the car eligible for the stock NHRA category, Ford capped power at 430 horsepower. A lot of people try to pawn off a 390 as a 428. the blocks are nearly identical and the stroke is close. In sixth place is the 1969 Mercury Cougar Eliminator. In 1968, Ford released the first versions of their now famed V8 Cobra Jet engines. In 1969, 10 different Mustang engine options were available. Basically, a 428 is just a stroked 390, and tuned for massive torque over horsepower. 1968 428 Cobra Jet Drag Strip Modifications 428 CJ Mustangs at the 1968 NHRA Winternationals Drag Strip Performance The Straight Scoop on "Canadian" Heads Engine Information 428 Cobra Jet History, by Bill Barr 428 Cobra Jet vs. 428 Super Cobra Jet Comparison of Major 428 Engine Components Component Identification Engine Identification Codes Information provided by Phil Wassil and by Kevin Marti of Marti Auto Works documents Detroit Locker availability beginning around November 1969 - in the 1970 model year! Super Cobra Jet horn reinforcement bracket Enthusiasts immediately latched onto the 428 and 429 Cobra and Super Cobra Jets, pushing them to their limits at local drag strips on the main drag. The 428 Cobra Jet was born by drag racers at a Ford Dealership to nudge FoMoCo in the right direction when they needed it most to help recapture the pony car market. Ford couldnt let the legacy of the Cobra Jet die with the 351, but it took quite some time to revive. The Ford engineers kept the KR-8 so they could break it down and discover what made it so powerful. While 1299 may seem like a lot( compared to the lightweight Galaxies, Thunderbolts, 427 Fairlanes and Boss 429's) it is a small fraction of the numbers . The back of the CJ block should have a "C" cast or welded into the back of it. The full-page print ad for the 1969 Mercury Cyclone CJ stated it best: Cyclone CJthe high-performance fastback with the bold build and sports car spirit. Even less common with a production of maybe 3,000. But there was one thing about the 428 CJ that left everyone puzzled. I want to register an account for free right now! Some of the other unique facts about the 428 are that it's externally balanced and due to the different piston and connecting rod combos used by the factory. Also does the cj have a lot of low end. Starting in 1966, you could also get a 428 Police Interceptor (only sold to police entities). The name is perhaps one of Ford's most enduring performance legacies. Super Cobra Jet harmonic balancer counter weight, 2 1999 - 2022 Scott A. Hollenbeck. A common misconception seems to be that SCJs were originally equipped with forged pistons and CJs were originally equipped with cast pistons. During the 1970 model year, "DETROIT LOCKER DIFFERENTIAL" appears on the invoice of vehicles that came with a factory Detroit Locker. The World's largest Before being replaced by the April 1, 1968, arrival of the 428 CJ, the mighty NASCAR-inspired 427 gave one last gasp in detuned form. As mentioned, the 428 Ford Cobra Jets had 427-style heads, which had 2.09 intake valves and 1.66 exhaust controllers. 1969 Cobras are often mistakingly called Torino Cobras, which didnt appear until 1970. Its not very well known, but Ford also branded another Cobra Jet from 1971-1974 the 351 Cleveland. The 385-series 429 and 460 are also good street-strip engines, with their canted valves and large bearings. 428 CU IN stuff I copied from the net: Introduced in 1966 Bore and stroke of 4.13X3.98 Cast iron crankshaft forged-steel connecting rods cast iron intake manifold 345 horsepower @ 10.5:1 compression ration Variations of the 428 existed throughout its' life span, including the 428 Police Interceptor, 428 Thunderjet and 428 Marauder. http://www.mercurycougar.net/gallery/showgallery.php/cat/500/ppuser/5281/perpage/12/sort/1, http://www.428cobrajet.com/facts.html#five. Restyled in 1970, the Mustang returned to single headlights that moved inside of the grille. The package was also available in the Torino, the Fairlane, and the Mercury Cyclone. A special option available for 1969 in the Cobra Jet Mustang included a 428 with internal modifications. But it was the Camaro-Firebird that joined the Mustang in the ponycar class. The 429 heads were incredibly free flowing, and in reality some of the best Ford big block heads ever created. Last edited: May 19, 2013 FrozenMerc, May 19, 2013 SHARE POST #3 hoop98 Member 390 and 428 are different. The W-code 427 and 428 CJ shared just about everything except main bearing caps and bore/stroke dimensions. This field is for validation purposes and should be left unchanged. Besides the T-Bird, there were Galaxies, Thunderbolt Fairlanes, Mustangs, Torinos, and both the AC Cobra and GT 500 Shelbys. I spoke to Rob Celedon the other day and his SCJ car has the same stamp on the block. JavaScript is disabled. I won Winter Nationals at Beeline Dragway in DStock Class at 13:05 118 mph in 1970 with my 428 CJ Mach. The most comprehensive guide to detailing a 428 Cobra Jet ever published. In its August 1968 issue, Motor Trend Magazine reported a 13.86-second ET, traveling at 101.69 miles per hour. In April of 1968, when the Cobra Jet Mustang hit the showroom floor, it sold like blueberry pancakes. Compression ratios were lowered considerably, and with this, performance often went out the window. Super Cobra Jet harmonic balancer counter weight, 1 The 715 was a Ford replica of a Rochester carb, and was fitted to the base Cobra Jets. Makes you wonder how many were built at the other plants. Mustang 428 Cobra Jet Service Parts Oil Level Indicator (Dip Stick) Oil Pan and Windage Tray Oil Pump Pistons Power Steering Fluid Cooler Power Steering Pump Radiator Radiator Cooling Fan Radiator Cooling Fan Shroud Radiator Fan Clutch Rear U-Joint Flange Reverse Lockout Rod (1970) Shock Tower Reinforcements Speedometer Gear Adapter Note that it was not thought to be possible to order an SCJ engine by itself -- the only way to get your hands on an SCJ in a Mustang was to order the optional 3.91:1 or 4.30:1 rear end gear ratios. 1968 was when the Cyclone lost its affiliation with the Comet nameplate, a good move considering it was on its way out entirely by 1969. Representation from nearly all Cobra/Daytona/GT40 manufacturers Help from all over the world for your questions Build logs for you and all members Blogs For the most recent 2018 Ford Cobra Jet, Ford used their modified Coyote variant, the 5.2 L Voodoo. It appears that Ford went through at least three piston designs during the 428 CJ and SCJ production run to address durability problems. Carroll Shelby, famous for his GT350 version of the Mustang as well as for the Cobra, became involved when he decided to produce a big-block version of his Shelby Mustang GT series. stronger. Kevin later explicitly confirmed that "Ford did not produce 69 4.30 vehicles with Detroit Lockers. What makes the 428 Super Cobra Jet engine so super? The Fora platform includes forum software by XenForo. It was a good-looking car featuring wide availability in its engine selection. Ordering either of these axle ratio options commonly triggered a few other upgrades as well, including the 428 Super Cobra Jet engine, an external oil cooler mounted in front of the radiator, and relocation of the driver's side horn to the passenger side of the radiator core support to make room for the oil cooler. The differences for the SCJ were: 1) The beefer 427 "LeMans" connecting rods. FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - difference in 428 blocks? Ford introduced the Mach 1 Mustang in 1969, creating an instant smash hit that outsold the previously popular GT by 67,062 units shuttering the GT model at the end of the model year. Like the Chevy L-88 was 5 hp less than the trip set up Corvettes, because they lied their ass off to keep people from buying the L-88 who didn't know what they were getting into. The 406 was essentially a bored 390, and in 1963 Ford went even bigger and bored the 406 out to 427 cid. The problem with the 427 was that it was far too expensive to produce for use in a regular production car. But there are other types of 428's and 429's floating around out there, built for different purposes, i.e. The original Ford Cobra Jets never made it past the 1970s, as increasing emissions restrictions and environmental and energy concerns ended up converging to squeeze the Cobra Jets out of existence. The peak torque of 452.4-lb-ft at 3,700 rpm is also higher than Dearborn's claim of 445 lb-ft at 3,400. Comparison of Major 428 Engine Components, 1968 428 Cobra Jet Drag Strip Modifications, 428 CJ Mustangs at the 1968 NHRA Winternationals, Classic Mustang Warranty Plate/Certification Label Decoder, Cast iron, similar to PI with revised carburetor bore risers, relocated carburetor pad, and radiused riser to upper and lower logs to improve fuel/air distribution, Production 390 GT cast iron light car manifolds, Redesigned high flow, low restriction unique to the 428 CJ, Redesigned dual inlet with hot/cold start-up system. Originally available in any of the three Mustang body styles--coupe, fastback, or convertible--all '68 CJ Mustangs are highly sought after, even 30 years later. The big reason a 428CJ makes more horsepower and torque than a PI is the superior heads. You can also check the build dates on the parts as well because they did not start pitting them in production cars till about March of 1968. In the quarter-mile, a one-second difference is a lot of car lengths. Although the 390 had been offered in the Mustang, the FE had seen incarnations of up to 428 ci. . Certainly the 428 was a torque machine, and if you had enough carburetor for about 5,000 rpms, that was about as fast you needed to spin that engine anyway. The immaculate 1968 427 seen here powers Craig Keith's Cougar XR-7G and resides in West Brookfield. These had the larger 600 cfm 4100. Come join the discussion about restoration, performance, modifications, classifieds, troubleshooting, maintenance, and more! Most of the differences have been listed except for one major difference. In fifth place is the 1969 Mercury Cyclone CJ. The 396 was known in Bow Tie circles as the Mark IV and was further known as the "mystery motor" because it was developed in secret for the '64 Daytona 500. Enter Bob Tasca, a Ford dealer who had a history of experimenting with Ford big-blocks for his dealership-sponsored race cars. I am a 351W guy. Pictures of some of these parts can be found in the component identification section of this web site. From 2013-2016, they used the 5.0 L Coyote engine as their powerplant. I'm not sure about how well a 429/460 fits in '67-70's though. The big FE also became notorious as one of the powerplants for Carroll Shelby's outrageous big-block-powered version of the AC Cobra. However, in true Cobra Jet fashion, Ford underestimated the horsepower from the factory. 1968 through 1970 428CJ blocks were beefed up between the bores and main webbing areas for anticipated higher horsepower output. The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. They were almost identical to the standard Cobra Jets, but had stronger internals. Good luck. Say Cyclone CJ. The Thunderbolt proved to be a very fast factory team drag racer--and proved again that the FE engine could be a formidable competitor. In lieu of reverting back to the factory 428 head castings, Tasca put heads from the 427 instead. Ford created a few high performance variants of the 429, the Boss 429 and the 429 Cobra/Super Cobra Jets. I want to register an account for free right now! Two codes designated a CJ: the R code specified a Ram Air vehicle, while the Q code meant no Ram Air. However, Ford ran into a problem. The Formal Roof versions were the ultimate sleeper, looking like your average everyday grocery getter to any unsuspecting contenders that pulled up next to it at a red light. As we all understand, the 390 wasn't standing up to the 396, and sales reflected this. Welcome to Club Cobra! The real cobra jet block had reinforced webbing as well as a higher nickel content, i.e. Compression was lowered from 10.7:1 to 9.0:1, and in 1971 it actually made 5 horsepower less than the standard 351 at 280 horsepower. The Electric Ford Cobra Jet Mustang can blast through the quarter-mile in just 8.12 seconds at 172 mph, annihilating any Mustang that has ever been in production. The basic casting is the same, but a 428 had a 4.13 inch bore and the 390 has a 4.05 bore stock. If so, please consider sharing a picture. Each engine was from a different Ford engine family, with the 428 and 429 both being big blocks. Twenty three years later 1992 bought a 289 GT Coup but soon installed a FE with cylender head mods and solid roller cam have ran a best 1.33 60 foot and a 6.39 eighth mile. In 2020, Ford came out with the most unique Cobra Jet in history, the All-Electric Mustang Cobra Jet 1400. The 429 is a 70 complete out of a Lincoln or some other 4 door. non biased Shelby Cobra related site! This package became notorious in slang as the Drag Pack. Hi Keiththis Ford Article isn't the best scan I've ever done but the article is very, Location: Abe Lincolns Birthplace, In various incarnations ranging from 332 ci all the way up to the 428, the FE was the heart and soul of many winning Ford-powered automobiles. 428 Cobra Jet Standard was 2.09 inch intake and 1.66 inch exhaust valves. Starting in February 1969 this complete package could be ordered as the "Drag Pack" option. Ford rated the engine at 335 horsepower and 440 lb-ft of torque, but that was probably understated for insurance purposes. As it turned out, the 427 heads massively improved both low-end torque and top-end power on 428. Be sure to subscribe if you like content like this! They did so to honor the 1968 Mustangs that won the NHRA Winternationals, and inaugurated the first Cobra Jet era. The difference in displacement between the two was achieved via stroke, with the 429 checking in at 3.590 . Why wouldn't an aluminum headed 351W be the best option -- then you don't have to change the rest of the driveline. The Boss and Cobra Jets had the same block with four bolt mains, short skirts, and thin wall castings. When this 428ci engine was installed in the Mustang, Shelby called the car the GT500. When the Ford execs at their plant in Dearborn, Michigan saw Tascas KR-8 428 engine in person they were impressed. Of course there's the Boss 429, but thats a horse of completely different color. The Camaro, Firebird, and Barracuda had eroded the pony car market Ford created in 1964. Completely overhauled in 1968, the Mercury Cyclone underwent significant changes, including dropping the convertible and adding a fastback form. Automotive magazines from 1968-1969 recorded eight of the fastest Mustangs, Fairlanes, Cyclones, and Cougars powered by a 428 Cobra Jet and Super Cobra Jet, ranging from 13.23 to 14.40-seconds in the quarter-mile ET with trap speeds of 99.4-106.6 MPH. There is only one high-performance damper of the latter era: The SCJ damper, which has a heavy inertia ring, much like the LeMans. Reportedly, they didnt even let Tasca leave with the car. While both shared the same advertised horsepower and torque figures, the 428SCJ wasnt available with air conditioning due to the engines oil cooler location. Even an external oil cooler was part of the deal--not bad for $6.53. Sorry, here's the other page. The 429 blocks are incredibly solid, and the Cobra Jets got a high nodularity, Brinnel tested crank and forged rods. In 1958, Ford introduced their first line of big block motors, known as the Ford FE engines. Midway through the 1967 model year, the 427 was swapped out for a newer 428 Cobra Jet engine equipped with a Holley four-barrel carburetor. - i dont know much about 428's but im looking into buying a boat that has a 428 in it. 428 Police Interceptor, and 429 ThunderJet, used in big luxury cruisers. The 1969 Ford Fairlane Cobra was a 1969-only option and was available in either a Formal Roof Hardtop or a Fastback form. The package included special capscrew-type connecting rods borrowed from the Ford GT Mark IV 427 Le Mans engine. In third place is the 1969 Ford Mustang Mach 1. The CJ 428 engine was the top-of-the-line performance option that replaced the former performance heavy-weight 427 CID V-8 in April 1968. To date I've only seen documentation for one such anomaly: 9R02R103630, built with a W-code 4.30:1 rear axle and a standard CJ engine. The 428 SCJ was first introduced during the 1969 model year. Keith, Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31, also police interceptors had solid lifters and adjustable rockers---GT & CJ were hydraulic, Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader, Reading this brings up a question that I've always wondered about. Though different part numbers were used for standard sized CJ and SCJ pistons (perhaps to provide slightly different installation tolerances), most folks that I've talked to believe that the pistons were in fact identical. The smaller bore of the 428 was well within normal production line capabilities. The big difference was the price (at $622, the 427 cost $188 more than the $434 428 CJ), transmission availability (the 427 was only teamed with the C6 automatic), carburetors (the 427's single Holley four-barrel rated 600 cfm, 135 less than the 428 CJ), and rated output. In 1963, the 427 saw service in a series of lightweight Galaxies, which had seen some racing success despite their weight. With more than 400 lb-ft available from 2,600 to 4,700 rpm, the Mach 1's tail is sure to be obscured in clouds of tire smoke. The 429s are also known as the 7.0 Lima V8s, due to their metric displacement. The 428 CJ and SCJ blocks have extra main bearing webbing and thicker main caps than the normal 390 or 428. You cannot really compare 69 with the 74 cars. A police interceptor may have an "A". In 1964, the 427 was shoehorned into the Fairlane, Ford's midsized entry, between the Galaxie on the big end and the Falcon on the small. The Cobra Jets are very similar to the standard 428s, with only minimal upgrades for better performance and reliability. Performance options aplenty: tach, styled steel wheels, power front disc brakes, power steering, Traction-Lok differential (3.50, 3.91 or 4.30 axel ratios), bucket seats, racing mirroryou name it. The 428's and 429's most associated with Cougars are Cobra Jets. The 429 Ford Cobra Jet pumped out 370 horsepower, while the Super Cobra Jets pushed out 375 horsepower. 428 cobra jet vs. 460. i was wondering if a 428 cj or a 460 would be a better engine for a street rod. Upgrade available to low restriction ram air (seal to hood) and "shaker" hood with hot/cold start-up system, Larger bolts; SCJ had material addedto outside of big end, Retuned damper for strengthened crankshaft, Revised valve springs for higher valve toss speed (6700 RPM), Improved material with modified, polished backside fillet radius, Unique adapter with oil in and oil out provisions for external oil cooler (SCJ only), Unique high (90%+) nodular iron with 10,000 RPM burst strength; high RPM clutch assembly, Higher relief valve pressure, unique oil filter adapter, and external oil cooling (SCJ only), Automatic and manual transmission available, Automatic and manual transmission available. According to the excellent Boss and Cobra Jet Mustangs by Dr. John Craft, this is how the Cobra Jet was born. Ford Cobra Jets came in either 351, 428, or 429 cid displacements, and there were also Super Cobra Jets, too. It came in T-birds and full size Fords in the late 60's and early 70's. Past Cats: '69 Std. In the November 1969 issue of Super Stock and Drag Illustrated magazine, a 70 Mach 1 made a 14.11-second quarter-mile pass, traveling 101.1 miles per hour. Includes year, model, engine, 1/4 mile times, and moreabsolutely free! The cars ran very well and won in the Super Stock category that year. These were sold as part of the Drag Pack option. See if you can determine if these motors you are looking at are CJ's. Ford had first introduced the public to the new Ford Cobra jet powered Mustangs at the 1968 NHRA Winternationals. Lets look at the differences between a 428 Cobra Jet and the 428 Super Cobra Jet engine, shall we? Everyone at Ford was confounded, and the brass didn't want to go back to the 427 because of the high cost of its heavy-duty internal components. Get exclusive muscle car content, giveaways, and a FREE Report on 10 of the most powerful muscle cars ever made right to your inboxabsolutely free! I actually have some kind of answer that I hope will help. However, it wasnt Ford Engineers that first developed this impressive powerplant. There were three original Cobra Jets, the 351, 428, and 429. In the January 1969 issue of Popular Hot Rodding, a 69 Mach 1 CJ 428 ran a 13.69-second ET with a trap speed of 103.4 miles per hourmaking it the tenth fastest muscle car of 1969. 429 Cobra Jet and Super Cobra Jet Vehicle Applications. In the 60s-70s, Ford put the Cobra Jet and Super Cobra Jet engines in Mustangs, Thunderbirds, and of course, Cobras. A different crankshaft and forged-aluminum pistons were also included. Just as long as they dont add gimmicky speakers with faux-engine noise, like some of their competitors. I bought a 72' Thunderbird yrs ago it was still pretty powerful. ), http://www.gessford.com/images/428-03.gif, http://www.gessford.com/images/428cobrajet.htm, http://www.gessford.com/images/FordMuscleStory.htm, http://www.428cobrajet.com/cj-vs-scj.html. All Rights Reserved. Whenever a . It also saw the addition of a new convertible body style with a power top. 428 FE police interceptor versus cobra jet - Club Cobra FE Forums sponsored by Keith Craft Inc. The basic strength of the Super Cobra Jet engine is in a more durable reciprocating assembly (crank, rods, pistons, wrist pins, flywheel/flexplate, and harmonic balancer) that was designed to withstand the higher RPM requirements of drag racing. Dr. An improved crank and rods were also part of the deal. The 351 Cobra Jet was the final Cobra Jet engine that Ford released, and it lasted from 1971-1974. Holley 735 CFM 4V (780 CFM modified with FT (Ford Truck) booster nozzles for improved atomization and emissions), 1.75" x 1.75" primary and secondary bores. Needless to say, the success of the Cobra Jet package guaranteed its reappearance for the '69 model year. The Super Cobra Jets got forged aluminum pistons and higher performance camshafts, as well as a high-rise intake manifold. The 429ci Cobra Jet was a different entity entirely. The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. Super Cobra Jet horn jumper wire. Ford had introduced the 385 series in 1968, and the 429 first appeared in the Thunderbird. Typically 360 horsepower. The SCJ block is the same as a CJ. Both the Cobra and Super Cobra Jets had dished cast pistons, and used stronger connecting rods than the standard 428. This victory was not lost on anyone--the public, the press, and Ford alike--much less the competition. Additionally, Ford simplified several exterior styling features due to a sales dip in 1969 attributed to aggressive styling. Very few were ordered because of the popularity of the new Mach 1 package. You true FE gurus can add/correct info to the above. Sadly, Ford discontinued the 429 Cobra Jet Mustang and other CJ-powered cars halfway through 1971. It was very similar to the standard 351 Cleveland engine, but with a few key differences. http://www.clubcobra.com/forums/fe-talk/10782-another-dumb-question-428cj-vs-428scj-whats-difference.html, https://www.hemmings.com/magazine/hmn/2009/04/Ford-429CJ-and-429SCJ-V-8/1796187.html. Competition was tough in the late '60s, with both GM and Chrysler offering up serious big-block performance. Royce: thanx for the clarification. Of course there's the Boss 429, but thats a horse of completely different color. Now. Cast iron intake manifold identical to the aluminum one on the police interceptor. 1969 Ford Cobras were dressed-down street warriors with a basic interior, column shifter, essential gauges, and gobs of power far more significant than 335 horsepower advertised ratings. The block and head were both cast iron, but some models may have had aluminum intakes instead of cast iron. Fords Cobra Jet engines rivaled high output big blocks from General Motors and Chrysler, and finally made some Mustangs worthy of being called muscle cars. YES! Factory horsepower and torque ratings were the same for both CJ and SCJ engines. the 429 Thunderjet was an amazing engine,in 1981 when I was 16 I bought a 69 4 door Thunderbird for $500and OMG, that was the most powerful engine ever,it would burn the tires until it shifted into third gear. The 428 was available as a 68 1/2, 68 and 70 model. Even in 2022, almost six decades later, the Ford Cobra Jets are still lusted over today by generations of gearheads. If you have, please consider sharing your information and pictures, if possible. The "SUPER" mark does NOT mean that the pistons were used only in SCJs! Ky, Cobra Make, Engine: CSX4761, KCR Shelby Alloy 496,760hp, My 427 racer buddy gave me a nos set of c6ae lemans rods,he strongly cautioned me to replace all the bolts with arp ,even though they have never been torqued,he told me in the 70's they went thru a rash of windowing new motors and was told by holman moody that of the ford rod bolts at least 25 percent were fualty out of the box,that would ruin your day to say the least,,huh ? Can be ID'd be block casting numbers of C8SE, C9VE, D0VE, D1VE among others and head casting numbers of C8SE, C9VE, D0VE among others. Increased Ebay value in a few strokes of a hammer! Ford advertised the 428 Cobra Jet's horsepower at 335 (10 less than the Thunderbird) with 440 lb-ft of torque, and whether those numbers were accurate or not they didn't push past the 390 far enough to generate more than passing interest from the Mustang crowd for its inaugural 1968 year. The later piston, which appears starting around December 1968, is marked "428" and "SUPER" (thanks to Randy Pollock for the picture), and differs from the earlier pistons by having additional metal in the pin boss area. Craft notes that one significant change for 1970 was the inclusion of a rear sway bar for Cobra Jet Mustangs. 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. In addition, the Spoiler II was available in either a red or blue paint schemehonoring legendary NASCAR drivers Cale Yarborough and Dan Gurney, respectively.

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