difference between 428 and 428 cobra jet
Paul: Sorry to disagree. The package was also available in the Torino, the Fairlane, and the Mercury Cyclone. Ford branded the new 428 the Ford Cobra Jet engine, and they also put it in the Fairlane and Torino. Ford 7-Liter Engines Deciphered: 427, 428, 429 | Themustangsource I think, but don't remember, that the SCJ would come in cars optioned with the "drag pack.". Unless specifically noted this comparison does not include the parts that are unique to the 428 Super Cobra Jet engine. 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. Each engine was from a different Ford engine family, with the 428 and 429 both being big blocks. If you want to discover which 428 Cobra Jet powered Fords were the fastest muscle cars, how the engine originated, which vehicles had it, and how the 428CJ differs from the 428SCJ, then read on. 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. 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 Ford engineers kept the KR-8 so they could break it down and discover what made it so powerful. Sunroof has a big brain. When the Ford execs at their plant in Dearborn, Michigan saw Tascas KR-8 428 engine in person they were impressed. The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. You might as well lead the way. Lastly, Ford engineers externally balanced the SCJ engine with a counterweight behind a different harmonic balancer because they removed the center counterweight on the crank. In the 1969 Supercar Annual magazine, one ran a 69 Cougar Eliminator ran a 13.90-second quarter-mile time with a 101.2 miles per hour trap speed. Last edited: May 19, 2013 FrozenMerc, May 19, 2013 SHARE POST #3 hoop98 Member Why wouldn't an aluminum headed 351W be the best option -- then you don't have to change the rest of the driveline. Very rare and very expensive as only about 1,200 were made. The rest of the info is the same. There was a special designation in the database to tell which cars had these installed". Typically 360 horsepower. The value is markedly different (about double). They did have a few XR7-G Cougars built that came with the first factory retractable sunroof though! The Cobra Jets are very similar to the standard 428s, with only minimal upgrades for better performance and reliability. 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 428CJ also used a superior cast iron intake and better exhaust manifolds. The 428 CJ cylinder heads featured an un-machined chamber of 73-76cc, 2.06" intake valves and 1.66" exhaust valves. 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 table below summarizes the part differences between the two engines. Get The Top 50 Fastest Muscle Cars chart. Your email address will not be published. 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). 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. Cobra Make, Engine: Posts: 717. 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. 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. In order to keep the car eligible for the stock NHRA category, Ford capped power at 430 horsepower. Right to the end in 1970, the 335hp rating stuck. Besides I have a reputation now First you have to start with the 428 v.s. The Boss and Cobra Jets had the same block with four bolt mains, short skirts, and thin wall castings. Basically, a 428 is just a stroked 390, and tuned for massive torque over horsepower. Super Cobra Jet Crankshaft Even an external oil cooler was part of the deal--not bad for $6.53. 428 CJ's came in the 69 so it would be more correct as far as appearance goes. Not too common, maybe a total production of 15,000. For a better experience, please enable JavaScript in your browser before proceeding. A special option available for 1969 in the Cobra Jet Mustang included a 428 with internal modifications. 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. Sorry, here's the other page. Incredibly, he too put a 428 cid block in his Mustangs, but he took it a step further than Shelby. The Ford 428 Big Block V8 Birthed The Cobra Jet And - DrivingLine 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. The main bearing journal diameter measures between 2.7484 and 2.7492 inches. It was rated at 375HP (grossly underrated). The chambers were open head, which helped with emissions, and Ford fitted the Autolite/Ford 4300-D 750 cfm 4bbl carburetor to it. (REGISTERED USERS DO NOT SEE THIS POST/AD! YES! 1999 - 2022 Scott A. Hollenbeck. However, buyers would have to order the GT package if they wanted to get their hands on one in 1968available in either a coupe or fastback body style. The Camaro, Firebird, and Barracuda had eroded the pony car market Ford created in 1964. i am putting the motor in a FORD 1972 short bed single cab pickup. 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. I want to register an account for free right now! See more Reply Save Like 1 Thought they would both go same time. 428cj vs 460 | 460 Ford Forum I want to register an account for free right now! Regarding the 428, it also matters if the block is a true CJ block or a police interceptor block. As referenced earlier, the 390 was a 4.050 bore and a 3.781 crank. 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. 428 cobra jet vs. 460 - Club Cobra Even in 2022, almost six decades later, the Ford Cobra Jets are still lusted over today by generations of gearheads. Luckily, Tasca Ford pioneered a high revving 428 engine nicknamed the KR-8 as a direct replacement for the low-revving 390 FE engine. The 429 heads were incredibly free flowing, and in reality some of the best Ford big block heads ever created. In sixth place is the 1969 Mercury Cougar Eliminator. 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. Unless specifically noted this comparison does not include the parts that are unique to the 428 Super Cobra Jet engine. 428 Police Interceptor, and 429 ThunderJet, used in big luxury cruisers.