ID'd by D0VE-A and D1VE-AA casting numbers on the block and D0OE-R on the heads. ). As referenced earlier, the 390 was a 4.050 bore and a 3.781 crank. Most of the published literature that I've read says that buyers of the locking 4.30:1 rear end gear also got a gear-driven Detroit Locker instead of Ford's clutch-packed Traction-Lok, but recent research leads me to believe that this is NOT the case! 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. Credit: CarsRememberWhenAutoSales/Wikipedia. I want to register an account for free right now! By 1974 the emissions crap that was added to the engine killed the power. 8th Place: 1970 Ford Mustang Mach 1 428CJ, 3rd Place: 1969 Ford Mustang Mach 1 428CJ, 2nd Place: 1968 Ford Mustang 428 Cobra Jet, 1st Place: 1968 Mercury Cougar XR7-GT 428CJ, more significant than 335 horsepower advertised ratings, Tasca Ford pioneered a high revving 428 engine, Top 10 Craziest Muscle Car Paint Colors from the Factory, Top 50 Fastest Classic Muscle Cars (1962-1973). Both were used on 428 PI, passenger car and Cobra Jet applications. Very rare and very expensive as only about 1,200 were made. YES! The SCJ timing pointer is slightly longer to clear the larger harmonic balancer. Unless specifically noted this comparison does not include the parts that are unique to the 428 Super Cobra Jet engine. At the '68 NHRA Winternationals in Pomona, California, Ford entered a number of specially warmed-up '68 Cobra Jet Mustangs. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. In April 1968, Ford released its own version of the 428 engine and called it the Cobra Jet.. Typically 360 horsepower. Cast iron exhaust manifolds. Super Cobra Jet harmonic balancer In sixth place is the 1969 Mercury Cougar Eliminator. For a better experience, please enable JavaScript in your browser before proceeding. 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. Sales success of the Mustang had been phenomenal in its first two years, and Ford wanted more. Even less common with a production of maybe 3,000. http://www.mercurycougar.net/gallery/showgallery.php/cat/500/ppuser/5281/perpage/12/sort/1, http://www.428cobrajet.com/facts.html#five. The 428SCJ was externally balanced with a counter weight behind a different harmonic balancer than the 428CJ. 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. Four decades after its initial release, and 34 years after it was discontinued, Ford brought back the Cobra Jet badge in 2008. The Ford Cobra Jets are some of the most iconic engines in Ford history, and have been since their release back in 1968. The new 2008 Ford Cobra Jet Mustangs were built strictly for the drag strip, so they werent even given VINs. The Cobra Jet version of the 351 Cleveland was one of four 351 Clevelands Ford released that year. Not too common, maybe a total production of 15,000. According to the excellent Boss and Cobra Jet Mustangs by Dr. John Craft, this is how the Cobra Jet was born. 390 and 428 are different. 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? 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. According to statistics courtesy of Marti Auto Works and copyrighted, this car was built at the San Jose assembly plant on October 1, 1968. Most of the differences have been listed except for one major difference. 1968 through 1970 428CJ blocks were beefed up between the bores and main webbing areas for anticipated higher horsepower output. There were three original Cobra Jets, the 351, 428, and 429. A special option available for 1969 in the Cobra Jet Mustang included a 428 with internal modifications. First, the 1969 price list: April 17, 1969 Mustang Drag Pack Option Description, June 1, 1970 Mustang Drag Pack Option Description, Cobra Jet Connecting Rod Included in any Cobra Jet package was a choice of the durable Top Loader four-speed transmission or a heavy-duty C6 three-speed Cruise-O-Matic, and of course the famously sturdy 9-inch rearend. The 406 was a serious development for Ford, as it catapulted them to NHRA and NASCAR victories in the mid-1960s. 428 FE police interceptor versus cobra jet - Club Cobra FE Forums sponsored by Keith Craft Inc. Introduced in 1958 for service in fullsize Fords as well as the Thunderbird, the FE had seen a long and colorful career. 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. The 1969 description says that the Drag Pack option is "Available only with 428 CID 4V Non-Ram or Ram Air engines" and "Not available with other optional ratio axles or air conditioner". VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. However, the original Mustang platform, as popular as it was, could not accept the larger engines Ford already had in its product lineup, because the engine compartment was simply too small. Very few were ordered because of the popularity of the new Mach 1 package. 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. i am putting the motor in a FORD 1972 short bed single cab pickup. you could be driving 15 mph and just floor it, and it would break the tires loose, you certainally didnt have to powerbreak it to spin the tires like every other car.my father had a 74 caprice with a 454 and the Tbird was far faster than the 454. Super Cobra Jet Connecting Rod There were slight differences in the base and higher trim Ford Cobra Jets, yet they were all rated the same 335 horsepower, likely meaning Ford was really sandbagging the numbers the whole time. The smaller bore of the 428 was well within normal production line capabilities. It was built only in 1970-71. First you have to start with the 428 v.s. Also does the cj have a lot of low end. . They have released new Cobra Jets every two years, with 2022 being the first exception so far. I've seen written reference to a C9AE-C rod also being used, but I've never been able to confirm an installation. Super Cobra Jet oil cooler adapter The 1975 MPC also excludes 1970 from the list of application years for the C9ZZ-13826-A bracket -its only listed for the 1969 Mustang equipped with a 428-4V or Boss 302 engine, but it was also positively used on the 1969 Boss 429 as well! stronger. 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. A limited number of Cobra emblems placed strategically on the exterior warned people what lurked under the hood. Whenever a . 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). This summary comparison of major 428 engine components was prepared by Bill Barr, Principal Engineer for the 428 Cobra Jet engine development program at Ford Motor Company. I bought a 72' Thunderbird yrs ago it was still pretty powerful. The 406 was essentially a bored 390, and in 1963 Ford went even bigger and bored the 406 out to 427 cid. The value is markedly different (about double). Welcome to Club Cobra! Needless to say, the success of the Cobra Jet package guaranteed its reappearance for the '69 model year. * These are service part numbers, not engineering numbers. Good luck. After some break-in miles, we'd likely see 375 hp and, with headers, yes, very likely 400 ponies. Sunroof has a big brain. w/sunroof, 69 XR7, '67 XR7, '68 Std., '70 Std. See more Reply Save Like 1 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. You true FE gurus can add/correct info to the above. The Thunderbolt proved to be a very fast factory team drag racer--and proved again that the FE engine could be a formidable competitor. Regarding the 428, it also matters if the block is a true CJ block or a police interceptor block. important]cars[/COLOR] will have heads with the smaller valves and a lesser highway friendly springs . Finally, the PI and CJ blocks of a given era were the same. Even in 2022, almost six decades later, the Ford Cobra Jets are still lusted over today by generations of gearheads. Right to the end in 1970, the 335hp rating stuck. Note that there is no mention of the Detroit Locker in the 1969 description, but it's clearly listed in the 1970 description. I actually have some kind of answer that I hope will help. Two-bolt main block Between 345-360 horsepower 428 Super Cobra Jet Internal structure differences included Lemans type cap screw rods The capscrews were shorter than the 427's to clear the block Externally balanced External engine oil cooler Here is some 429 info I gleaned off the net: First was the base 429, known as the Thunder Jet (TJ). The 428 Cobra Jet returned, and all Mach 1s came standard with a rear sway bar, and the Shaker Hood was now available on all V-8s, not just the CJs. In 1969, 10 different Mustang engine options were available. 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 390 Mustang was getting abused at the drag strip by Chevrolets new 396 powered Camaro. Tim K, Cobra Make, Engine: Shell Valley- smallblock grenade w/ the pin pulled. To verify an original car, you can simply look at the vehicle identification number (VIN) on the dashboard. The 1967 Shelby GT500 featured a new 428 cid engine that had been used in the Thunderbirds and Galaxies. The difference in displacement between the two was achieved via stroke, with the 429 checking in at 3.590 . The 428 SCJ was first introduced during the 1969 model year. 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 CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. It came in special Mustangs (and 2 Cougars) in 1969-70. Makes you wonder how many were built at the other plants. YES! I won Winter Nationals at Beeline Dragway in DStock Class at 13:05 118 mph in 1970 with my 428 CJ Mach. As it turned out, the 427 heads massively improved both low-end torque and top-end power on 428. 370 HP (likely underrated), thick strong blocks and massive ports int he heads. 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 four years of its existence, the Cobra Jet name became synonymous with high-performance. Cyclone CJ comes with four-speed stick competition handling package, wide-tread fiberglass belted WSW tires, blackout grille, hood stripe, all-vinyl cockpit, low-restriction dual pipesall standard. Each engine was from a different Ford engine family, with the 428 and 429 both being big blocks. The 429 blocks are incredibly solid, and the Cobra Jets got a high nodularity, Brinnel tested crank and forged rods. Although these cars were slightly different than what would shortly be on the showroom floor, word was out that the Cobra Jet package was the way to go. Reportedly, Ford plans on getting even crazier with the electric Mustang Cobra Jet, shooting eventually for one that can hit the quarter-mile in less than 7 seconds. While the torque claim was in line with expectations, many wondered why the big 428 CJ was only 10 ponies ahead of the 325hp 390 GT four-barrel mill. In fact, the 428 was listed at 335 hp, the same as the 390. In the go department, a real grabber (335 horses). Whereas Shelby had scrapped plans to redesign the 428s intake manifold a notorious choke point Tasca came up with a different idea. The 429 is a 70 complete out of a Lincoln or some other 4 door. Block, heads, manifolds, etc. In seventh place is the 1969 Ford Fairlane Cobra. When I had Southern Automotive rebuild my engine, I delivered it to him with a set of LeMans rods. Last month, we brought you Part 1 of 3 on how to detail a 428 Cobra Jet engine to concourse level, with Marcus Anghel of . They had introduced the 385 series in 1968 to start replacing the outgoing FE series. In lieu of reverting back to the factory 428 head castings, Tasca put heads from the 427 instead. The fifth digit in the VIN on any Ford from 1968-1970 tells you whether or not a vehicle came with this engine or not. 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. Two-bolt main block Between 345-360 horsepower 428 Super Cobra Jet Internal structure differences included Lemans type cap screw rods the 428 CJ. When identifying a Super Cobra Jet, you cant do it by the VIN as it shares the same R and Q code designations as the Cobra Jet. In 1968, Ford released the first versions of their now famed V8 Cobra Jet engines. Note that the explanation says that three other cars were built like this at San Jose! All 428's had 2-bolt mains also. 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. You can have it straight (CJ 428) or with optional CJ 428 Ram, the breathtaker. The valves are bigger but the real improvement is the exhaust port which is both wider internally and straighter plus higher exit point in the casting. The Ford 428 Super Cobra Jet was only available in the 1969 and 1970 model years. The SCJ had beefier rods and an oil cooler. Ford countered by introducing the FE-series 390ci V-8 engine for the '67 Mustang. 1969 and 1970 CJ vs. SCJ parts identification. 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 differences for the SCJ were: 1) The beefer 427 "LeMans" connecting rods. 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. The heads ID themselves. The back of the CJ block should have a "C" cast or welded into the back of it. A forum community dedicated to Mercury Cougar owners and enthusiasts. All FE dampers are neutrally balanced, so all can be interchanged between motors if you understand the pulley requirements. Super Cobra Jet harmonic balancer counter weight, 4 The car automatically became a Super Cobra Jet. The A blocks were made until mid 1968 model year. I have a 428 FE engine in my car from back in the day (60's). The connecting rod journal diameter measures between 2.4380 and 2.4388 inches. Not only is the 1968 Mercury Cougar XR7-GT the fastest factory Cobra Jet on this list, but it is also the fastest muscle car of 1968much to the chagrin of Mustang, Torino, Fairlane, Cyclone, and Montego owners everywhere. I am a 351W guy. All this was none too soon. They were the be-all and end-all of rods back in the sixties, but metallurgy has far surpassed them today. p.s. This is an internally ballance assy . The 428 is a 1969 block no heads. Untamed European elegance indeed. 22 Though some claim the 428 CJ actually made in excess of 400 hp, we observed 365.1 hp at 4,800 rpm, almost 10 percent more than advertised. 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! The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. 2) Cast iron PI (Police Interceptor) intake manifold. 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 429 Ford Cobra Jet pumped out 370 horsepower, while the Super Cobra Jets pushed out 375 horsepower. The company was aware of the new Camaro project brewing over at Chevrolet. 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. The Boss and Cobra Jets had the same block with four bolt mains, short skirts, and thin wall castings. 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. If you have, please consider sharing your information and pictures, if possible. They also made a healthy 450 lb-ft of torque, which made for total increases of 35-40 horsepower and 10 lb-ft over the 428s. 1970 Ford F100 2WD SB 447 Strokered FE w/ T19 Bullitt390 New Member 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. (The hood scoop works.) Besides I have a reputation now First you have to start with the 428 v.s. This was the year that stricter emissions laws went into effect, and emphasis was shifting away from performance. The package included special capscrew-type connecting rods borrowed from the Ford GT Mark IV 427 Le Mans engine. Super Cobra Jets also had oil coolers as standard, which were options for the Cobra Jets. Yep, I'm a hack! The block and head were both cast iron, but some models may have had aluminum intakes instead of cast iron. Sold it, big mistake. Bore and stroke was 4.0 X 3.5. The 428 Cobra Jet powered some of the fastest Ford Muscle Cars from 1968 to 1970, over nine Ford and Mercury models. Either way, you can be guaranteed it will be a monster at the drag strip and not be lacking for power. The 429/460 is going to be the cheaper of the engines to build. Super Cobra Jet harmonic balancer counter weight, 1 Ford introduced their second generation of FE V8 big block engines in 1962 with the 406 cid big block. The increasing shift towards electric power plants makes it likely that any future Cobra Jets will be electric. The Cyclone was now part of the Montego family of vehicles. Then there was the 429 Cobra Jet (CJ). In order to keep the car eligible for the stock NHRA category, Ford capped power at 430 horsepower. The longer stroke (3.98 vs. 3.78 for the 427) gave the engine powerful low-end punch. As a result, the 428 was less rev-happy but it gained a low-end torque punch that was absent in the 427. 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! Hi Keiththis Ford Article isn't the best scan I've ever done but the article is very, Location: Abe Lincolns Birthplace, Educate me! A true Cobra Jet block will have a C cast in the back the block where the bell housing bolts up. One had spun on the crank bearing and all would have had to be resized, so Bill advised me. With a bore and stroke of 4.36 X 3.59, the 429 has a larger bore but smaller stroke than the 428s. The 1968 Mustang received several styling updates, including side scoops, steering wheel, side marker lights, and gas cap. The '69-'70 Mustangs were nearly identical cars featuring minor cosmetic changes. 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. They were almost a direct fit, and Tasca called his new creation the KR-8 Mustang. For this family of motors, the SCJ actually got four-bolt mains and then there was that same 5 horsepower difference. 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. As an Amazon Associate I earn from qualifying purchases. But of course, it was too late to change the name. 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. The 428CJ was available in nine Ford, Mercury, and Shelby muscle car models between 1968-1970. At the same time, a Ford dealer named Bob Tasca was also looking to get more power out of his 390-powered Mustangs. Craft notes that one significant change for 1970 was the inclusion of a rear sway bar for Cobra Jet Mustangs. While both shared the same advertised horsepower and torque figures, the 428SCJ wasnt available with air conditioning due to the engines oil cooler location. Instead, Tasca Fordthe second-largest Ford dealership in the world in the 1960sinspired the 428CJ revolution. . The real cobra jet block had reinforced webbing as well as a higher nickel content, i.e. But there are other types of 428's and 429's floating around out there, built for different purposes, i.e. In 1970, Ford began phasing out the FE engines in favor of the new 385 big block series of engines. 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 basic casting is the same, but a 428 had a 4.13 inch bore and the 390 has a 4.05 bore stock. In the January 1969 issue of Motor Trend magazine, a 69 Cyclone CJ 428SCJ ran a 13.86-second quarter-mile pass at 101.7 miles per hour. The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. Is a 428 a cobra jet or is the cj a special 428 and is the block different between the cj and non cj. If it's to be a "driver", compression needs to be lowered to use "pump . Beyond that, the so-called Thunderbird 428 offered in fullsize Fords and T-birds made 345 hp, 10 more than the CJ despite its milder cam, low-rise iron intake, 446-cfm Ford 4300 series four-barrel carburetor, and clunky log-style exhaust manifolds. Now. Ford had introduced the 385 series in 1968, and the 429 first appeared in the Thunderbird. I want to register an account for free right now! In the August 1968 issue of Super Stock & Drag Illustrated magazine, a 68 Cougar XR7-GT tripped the quarter-mile in 13.23 seconds, traveling at 103.4 miles per hour. stronger. not a chance, the 428 scj would out pull the 460 hands down. The 429 heads were incredibly free flowing, and in reality some of the best Ford big block heads ever created. Also, the stroke on a 428 should be 3.98. although the fastest factory car i have ever been in was and is to this day the 68 428scj mustang, and those cars are cars of record winning the 68' winternationals against the Hemi cars. 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. Now lets take a look at the various Ford Cobra Jet engines. The Cobra Jets are very similar to the standard 428s, with only minimal upgrades for better performance and reliability. And this dealer-inspired Ford racing engine couldnt have appeared at a better time for the Ford Motor Company. Of course there's the Boss 429, but thats a horse of completely different color. 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. Most 428s in 7 liter [COLOR=#0000ff! Ford quickly caught the vision, and before the drag-ready Mustang returned to Tasca Ford, Ford Engineers removed it from the vehicle so they could reverse engineer it for mass production. In 1971, the 351 Ford Cobra Jet made 280 horsepower, but that dropped to 266 horsepower and then 255 horsepower. 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 program was engineered, designed, tested, validated, released, and certified between January 1967 and August 1968.
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