Super Cobra Jet harmonic balancer counter weight, 3 The C blocks were later. By 1975, the Ford Cobra Jet had ceased to exist in production. According to statistics courtesy of Marti Auto Works and copyrighted, this car was built at the San Jose assembly plant on October 1, 1968. The 428 was available as a 68 1/2, 68 and 70 model. 428 Engine Specifications | Classic Cars - CarMemories.com The 429 was not produced until 1969. You cannot really compare 69 with the 74 cars. It was probably a case of "building out" soon-to-be obsolete 427 inventory. Ford really got it right with the 1968 428 Cobra Jet (CJ). Some original SCJ blocks were stamped "super" on the front; if present, this marking was likely there to tell the original engine assemblers to use SCJ internals when building the engine (here's an example of such a stamping courtesy of Randy Pollock). By 1974 the emissions crap that was added to the engine killed the power. You might as well lead the way. The C blocks started to be used in mid 1967 before the CJ production started. Ford 7-Liter Engines Deciphered: 427, 428, 429 | Themustangsource "A standard 428 will have a U1 crankshaft ballanced on the inside of the ballancer but weight added on crankshaft . 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. These only became available in the 1970 model year, as you noted. When this 428ci engine was installed in the Mustang, Shelby called the car the GT500. I think, but don't remember, that the SCJ would come in cars optioned with the "drag pack.". Difference between a 390fe and 428fe? - Club Cobra 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 Ford engineers kept the KR-8 so they could break it down and discover what made it so powerful. A forum community dedicated to Mercury Cougar owners and enthusiasts. 428 Cobra Jet Engine Detailing, Part 2 - MotorTrend While the print ad boasted leading the way, the Cyclone CJ ended up closer to the middle of the pack in 1969, coming in 12th overall in factory supercar quarter-mile times published that year. The Cobra Jet 428 motors in Mustangs used heads from the 427, plus other enhancements to really put some hair on their chest. The Fora platform includes forum software by XenForo. 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. Mixing SCJ and CJ parts can cause severe balance problems. However, it wasn't Ford Engineers that first developed this impressive powerplant. I've heard this could be a Cobra Jet but I've also heard this might not be the case. In addition, when equipped with a 4-speed, the rear shocks were staggered. Testing 4-2-8How Much Horsepower Does the Ford 428 Cobra Jet Really Make? This field is for validation purposes and should be left unchanged. It was available in the new Camaro in 325-, 350-, and 375hp forms (a 425hp version had been available in the Corvette for '65). Ranging from common problems info to performance modification guides, we cover everything muscle car. 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. 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. 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. 428 CJ's came in the 69 so it would be more correct as far as appearance goes. Welcome to Club Cobra! Carburetors Of The 428 - Dearborn Pit Stop Blog 1970 Ford F100 2WD SB 447 Strokered FE w/ T19 Bullitt390 New Member 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 ? The 406 was a serious development for Ford, as it catapulted them to NHRA and NASCAR victories in the mid-1960s. 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. The World's largest 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.
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