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. The cast iron intake manifold was a high-rise style, which was exceedling heavy at 90 lbs. The Ford 428 Super Cobra Jet was only available in the 1969 and 1970 model years. I'm not going to provide an opinion, but I will show you how Ford Motor Company described this Mustang option on their 1969 and 1970 option price lists. 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. I want to register an account for free right now! The package included special capscrew-type connecting rods borrowed from the Ford GT Mark IV 427 Le Mans engine. The PI ran stock 390/428 heads, an aluminum intake, the same cam as the CJ and a 600 CFM carb. Your email address will not be published. Starting in February 1969 this complete package could be ordered as the "Drag Pack" option. SCJs seem to use the C6AE-E rod most frequently, though again I've seen written reference to a C9ZE-A rod that I haven't been able to confirm was ever actually factory installed. 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. 1969 and 1970 CJ vs. SCJ parts identification. When I had Southern Automotive rebuild my engine, I delivered it to him with a set of LeMans rods. stronger. 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. The 429 Ford Cobra Jet pumped out 370 horsepower, while the Super Cobra Jets pushed out 375 horsepower. 1973-1974 351 Cobra Jets had smaller valves, which resulted in a drop in horsepower on some models to 245. The 396 featured advanced-design, canted-valve cylinder heads that flowed like crazy and earned the name "porcupine" because of their splayed-valve arrangement. It was rated at 375HP (grossly underrated). 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. Also i was wondering if you hopped them up which one would have more horsepower and which one you could rebuilbd for less money, and which one would be less maintenance? It was fortuitous that Tasca Ford nudged Fordand Ford listenedbecause the 428 Cobra Jets and Super Cobra Jets are amongst the baddest Ford Muscle Cars you could drive off the lot from 1968-1970. First you have to start with the 428 v.s. There have been rumors of cars being delivered with SCJ engines and other axle codes, and V- or W-code axles and no SCJ engine. However, a 4-speed option was also available. non biased Shelby Cobra related site! But, from the factory it was never as powerful as the (solid lifter) 427. Even in 2022, almost six decades later, the Ford Cobra Jets are still lusted over today by generations of gearheads. Cobra Make, Engine: Everett-Morrison LS1, IIRC look at the exhaust manifold bolt pattern-------------the 390GT and 428CJ had a different bolt pattern (had some more holes and an tab on the head for the pattern--the standard engines only had the vertical pattern with a bolt at top and bottom of port, Cobra Make, Engine: Kellison Stallion 468 FE, Cobra Make, Engine: Kirkham 427 brushed aluminum with Keith Craft 527C.I. But of course, it was too late to change the name. I have a set of stamps capable of stamping SCJ or Holman Moody or anything else you like into a block. Finally, the PI and CJ blocks of a given era were the same. In 1967, this changed when they put the first generation 390 big block in the Mustang. The 429ci Cobra Jet was a different entity entirely. The increasing shift towards electric power plants makes it likely that any future Cobra Jets will be electric. Restyled in 1970, the Mustang returned to single headlights that moved inside of the grille. I've seen written reference to a C9AE-C rod also being used, but I've never been able to confirm an installation. The 428 was basically a bored out 427, though it performed better and was more reliable. In order to keep the car eligible for the stock NHRA category, Ford capped power at 430 horsepower. The World's largest non biased Shelby Cobra related site! 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. document.getElementById( "ak_js_3" ).setAttribute( "value", ( new Date() ).getTime() ); Get Your Top 50 Fastest Muscle Cars ChartFREE! In lieu of reverting back to the factory 428 head castings, Tasca put heads from the 427 instead. 429 Cobra Jet and Super Cobra Jet Vehicle Applications. In the March 1968 issue of Hot Rod magazine, a 68 Mustang CJ ran a 13.56-second quarter-mile time, traveling at 106.6 miles per hour. Ford execs got the word. 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. Craft notes that one significant change for 1970 was the inclusion of a rear sway bar for Cobra Jet Mustangs. Wow, look at me actually providing an answer instead of asking questions all the time! Combined with their burgeoning competition with the new Chevy Camaro, Ford decided to put a modified 428 heavily based on Tascas 428 into the Mustang for 1968. . Whereas Shelby had scrapped plans to redesign the 428s intake manifold a notorious choke point Tasca came up with a different idea. Ford branded the new 428 the Ford Cobra Jet engine, and they also put it in the Fairlane and Torino. 428 Police Interceptor, and 429 ThunderJet, used in big luxury cruisers. It is remembered by those who love the Ford Blue Oval, and feared by others who would challenge the cars bearing the Cobra Jet name. The factory ratings were intentionally low for insurance reasons. 1999 - 2022 Scott A. Hollenbeck. So instead, you have to examine the axle code on the door tag for a V or a W to verify its legit. In fifth place is the 1969 Mercury Cyclone CJ. Yet, in 2008, Ford brought back the Cobra Jet badging for its 40th Anniversary. Introduced in 1958 for service in fullsize Fords as well as the Thunderbird, the FE had seen a long and colorful career. 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. Ford countered by introducing the FE-series 390ci V-8 engine for the '67 Mustang. The chambers were open head, which helped with emissions, and Ford fitted the Autolite/Ford 4300-D 750 cfm 4bbl carburetor to it. The rest of the info is the same. 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 While the Cyclone was named the fastest car of the year, having set a world record speed of 189.22 miles per hour at Daytona, the 428 version wasnt the fastest in the quarter-mile, achieving 18th place overall. Not Ranked. The 428 CJ and SCJ blocks have extra main bearing webbing and thicker main caps than the normal 390 or 428. The 428 Police Interceptor Engine The 428 police interceptor engine could be found on both the 1967 Shelby GT500 and the 1968 GT500KR. "A standard 428 will have a U1 crankshaft ballanced on the inside of the ballancer but weight added on crankshaft . The original production run only lasted for six years, from 1968-1974, but it made an incredibly outsized impact. As an Amazon Associate I earn from qualifying purchases. 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. 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. ** I've also read reports of 428 CJ balancers with engineering numbers C8AE-AA and C8AE-AB, but I haven't personally seen one of these balancers -- have you? For the '70 Torino and Cyclone and the '71 Mustang and Cougar, the passing of the 428 meant a switchover to the new 385-series Ford big-block. You can use the 428 crank in the 390 block and will end up with 410 cubic inches (Ford actually had a 410 for a couple years). The spirit of Bob Tasca and Carroll Shelbys original 427/428 hybrids still live on today if youre lucky enough to see one in person. In the quarter-mile, a one-second difference is a lot of car lengths. The following year, the Super Cobra Jet became an option. 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. Good luck. Ford released a few high performance variants of the 429, including the Boss 429 and the Cobra Jets. The 428 also got a single snorkel air cleaner and had a Holley 735 cfm carburetor. . A remedy was in the making, as the 428 Cobra Jet package for the Mustang began its metamorphosis. 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 Boss and Cobra Jets had the same block with four bolt mains, short skirts, and thin wall castings. not a chance, the 428 scj would out pull the 460 hands down. The largest was the 390 cid, which Ford first brought out in 1961. In April 1968, Ford introduced the Cobra Jet, built from a 428 Police Interceptor short block with 427 low riser heads, among other heavier-duty performance partssimilar to what Holman Moody had invented. The World's largest Over the years, Ford has produced some incredibly iconic cars and engines. Ford couldnt let the legacy of the Cobra Jet die with the 351, but it took quite some time to revive. But there are other types of 428's and 429's floating around out there, built for different purposes, i.e. The stage was set, and war was waged in earnest. w/sunroof, 69 XR7, '67 XR7, '68 Std., '70 Std. This became a private war between the automakers. Reportedly, they didnt even let Tasca leave with the car. A police interceptor may have an "A". 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. If the 69 428 is the real deal buy it. No other numbers are CJ. 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. Not too common, maybe a total production of 15,000. Dr. 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. The Super Cobra Jet, available only with a 3.91 or 4.30 rear axle ratio, included additional features. Actually, rebuilding a 428 using modern methods costs significantly MORE than $2,500. I'm not sure about how well a 429/460 fits in '67-70's though. The Model T has long been considered one of the greatest manufacturing feats in modern history, and Fords flathead engine transformed V8s for the future. The Ford 428 Cobra Jet was the high-performance version of the 428 FE engine, quickly overtaking the low-revving 390 CID V-8 as the high-performance powerplant of choice. In third place is the 1969 Ford Mustang Mach 1. Besides the T-Bird, there were Galaxies, Thunderbolt Fairlanes, Mustangs, Torinos, and both the AC Cobra and GT 500 Shelbys. Ford was not caught in flagrante delecto, however. The birth of the Cobra Jet engine package from Ford was in response to external pressures. 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. In 1971, the 351 Ford Cobra Jet made 280 horsepower, but that dropped to 266 horsepower and then 255 horsepower. For example, the SCJ used race-proven 427 "LeMans" capscrew connecting rods with shorter bolt heads, whereas the standard CJ rod used a more common press-fit bolt and nut to retain the rod cap. The SCJ timing pointer is slightly longer to clear the larger harmonic balancer. Upgraded C6 with higher shift speed and modified clutch packs, New 6" HG with miminal exhaust restriction mufflers and pipes, Revised for staggered shock absorbers to eliminate reverse gear tramping. YES! In second place is the 1968 Ford Mustang 428 Cobra Jet. The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. In 1970, Ford began phasing out the FE engines in favor of the new 385 big block series of engines. A forum community dedicated to Mercury Cougar owners and enthusiasts. Massachusetts. The 390 Mustang was getting abused at the drag strip by Chevrolets new 396 powered Camaro. The real cobra jet block had reinforced webbing as well as a higher nickel content, i.e. Pictures of some of these parts can be found in the component identification section of this web site. Slightly smaller in bore but longer in stroke, the 428 ran smoothly in street trim, but it was still a very powerful engine, with mountains of torque. 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 rarest of the bunch are the 68's. The most vaulable Cobra Jet is the 1968 Shelby GT500KR convertibles, which can go for as much or more than a BOSS 429. There was some overlap of the C and A markings on the rear block face which means many early CJ's have the A on the block while many police and pasenger 428 engines have the C marking. The car automatically became a Super Cobra Jet. Get The Top 50 Fastest Muscle Cars chart. Introduced at the height of the high-performance wars, big-block Cobra Jets acquitted themselves well in the Mustang and in other cars. I've heard from others who've reported finding C6AE-C, C6AE-D, and C6AE-F rods in what they believe to be original engines. In 2020, Ford switched from massive superchargers to an all-electric platform, but dropped jaws by making 1,500 wheel-horsepower a worthy trade-off to get rid of the internal combustion engine.The future of the Cobra Jet is unknown, and its unclear whether Ford will ditch petrol for good and switch to electric, or if that was a one year anomaly. The most comprehensive guide to detailing a 428 Cobra Jet ever published. The big-block Chevy had the edge in breathing ability, but this move closed the gap between the two engines a great deal. It may be possible to mix components if every component of the reciprocating assembly is dynamically balanced, but why bother? These are a few ways you can tell. ). According to statistics courtesy of Marti Auto Works and copyrighted, this car was built at the San Jose assembly plant on October 1, 1968. now if your talking 429scj vs. 428 scj i would give the nod to the 429scj. Because the NHRA used advertised factory horsepower and shipping weight claims to group vehicles into competition classes and categories, it paid to fib a little bit; 428 CJ-powered Mustangs and Fairlanes quickly became feared street and strip machines. Ford 428s had a different water jacket core which can often be identified by the "428" cast in the bottom of the inner water jacket right under the center freeze plug. Cast iron intake manifold identical to the aluminum one on the police interceptor. From 2013-2016, they used the 5.0 L Coyote engine as their powerplant. According to the excellent Boss and Cobra Jet Mustangs by Dr. John Craft, this is how the Cobra Jet was born. Enter Bob Tasca, a Ford dealer who had a history of experimenting with Ford big-blocks for his dealership-sponsored race cars. The 1969 Ford Fairlane Cobra was a 1969-only option and was available in either a Formal Roof Hardtop or a Fastback form. 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! Both were used on 428 PI, passenger car and Cobra Jet applications. As it turned out, the 427 heads massively improved both low-end torque and top-end power on 428. The C blocks started to be used in mid 1967 before the CJ production started. I want to register an account for free right now! The 335hp rating was nothing more than a ploy to distract the NHRA from the CJ's true ability, in hopes of getting more advantageous classifications in Stock and Super Stock competition. Sold it, big mistake. With a bore and stroke of 4.36 X 3.59, the 429 has a larger bore but smaller stroke than the 428s. 428's never had cross bolted mains, unlike the 427 (and a few 406's). He had been involved in the Thunderbolt program back in 1964. (The hood scoop works.) In its August 1968 issue, Motor Trend Magazine reported a 13.86-second ET, traveling at 101.69 miles per hour. The differences for the SCJ were: 1) The beefer 427 "LeMans" connecting rods. The Cobra Jet version of the 351 Cleveland was one of four 351 Clevelands Ford released that year. Welcome to Club Cobra! And this dealer-inspired Ford racing engine couldnt have appeared at a better time for the Ford Motor Company. Also, the stroke on a 428 should be 3.98. By 1975, the Ford Cobra Jet had ceased to exist in production. 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. After some break-in miles, we'd likely see 375 hp and, with headers, yes, very likely 400 ponies. Many aficionados of the Cobra Jet Mustang consider the '70 version to be the nicest of all, combining the last year of the FE engine with the last year for the '69-'70 body style. The Ford Cobra Jet and Super Cobra Jet were introduced in 1970, and they were improvements over the 428s. 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. They were almost identical to the standard Cobra Jets, but had stronger internals. Incredibly, he too put a 428 cid block in his Mustangs, but he took it a step further than Shelby. Lots of people have different opinions about the "Drag Pack" option described above, what it included, and which cars it was available for. In 1969, Ford created an even higher performance version, known as the 428 Super Cobra Jet. Needless to say, the success of the Cobra Jet package guaranteed its reappearance for the '69 model year. The Mustang still used small blocks in their engines, with the 289 cid being the largest available. The value of a Cobra Jet will differ, depending on the body style, options, and year of the car.

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