When this 428ci engine was installed in the Mustang, Shelby called the car the GT500. That didnt happen until 69. See more Reply Save Like 1 It was a good-looking car featuring wide availability in its engine selection. The value of a Cobra Jet will differ, depending on the body style, options, and year of the car. From 2013-2016, they used the 5.0 L Coyote engine as their powerplant. 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. I want to register an account for free right now! The 428 uses a crank with a 3.98 inch stroke and a 390 has a 3.78 inch crank. Compression ratios were lowered considerably, and with this, performance often went out the window. 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. 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. After some break-in miles, we'd likely see 375 hp and, with headers, yes, very likely 400 ponies. Ford had introduced the 385 series in 1968, and the 429 first appeared in the Thunderbird. 1969 Ford Mustang Mach 1 428 Super Cobra Jet Muscle Car Of The Week Video Episode #91The Mach 1 handling and appearance package made for some good looking an. Ford Cobra Jet Guide - History, Specs, Engines - 1968-2020 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 Cobra Jets are very similar to the standard 428s, with only minimal upgrades for better performance and reliability. Competition was tough in the late '60s, with both GM and Chrysler offering up serious big-block performance. While the engine was widely praised in car magazines for its performance, its large weight (720 lbs) was often chastised. In sixth place is the 1969 Mercury Cougar Eliminator. 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 company was aware of the new Camaro project brewing over at Chevrolet. The C marking on the rear face of blocks predated the CJ era. Cobra Make, Engine: Previous ERA owner on break, Just a note on the LeMans rods. Over the years, Ford has produced some incredibly iconic cars and engines. 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. The C blocks started to be used in mid 1967 before the CJ production started. I have a 69 428 SCj hardtop, and the word SUPER is stamped (not cast) onto the flat surface behind the head on the right of the engine. Introduced at the height of the high-performance wars, big-block Cobra Jets acquitted themselves well in the Mustang and in other cars. The 1969 Ford Fairlane Cobra was a 1969-only option and was available in either a Formal Roof Hardtop or a Fastback form. Incredibly, he too put a 428 cid block in his Mustangs, but he took it a step further than Shelby. It may be possible to mix components if every component of the reciprocating assembly is dynamically balanced, but why bother? 428 vs. 428CJ - 332-428 Ford FE Engine Forum It was very similar to the standard 351 Cleveland engine, but with a few key differences. Each engine was from a different Ford engine family, with the 428 and 429 both being big blocks. Kevin later explicitly confirmed that "Ford did not produce 69 4.30 vehicles with Detroit Lockers. Pontiac had its GTO as well as the new twin sister to the Camaro, the Firebird, and each was available with a 400ci engine. Grue up with Ford FE. Ford couldnt let the legacy of the Cobra Jet die with the 351, but it took quite some time to revive. 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. I won Winter Nationals at Beeline Dragway in DStock Class at 13:05 118 mph in 1970 with my 428 CJ Mach. 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. The Super Cobra Jets got forged aluminum pistons and higher performance camshafts, as well as a high-rise intake manifold. Regarding the 428, it also matters if the block is a true CJ block or a police interceptor block. Luckily, Tasca Ford pioneered a high revving 428 engine nicknamed the KR-8 as a direct replacement for the low-revving 390 FE engine. Wow, look at me actually providing an answer instead of asking questions all the time! 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. Ford branded the new 428 the Ford Cobra Jet engine, and they also put it in the Fairlane and Torino. Identified by the letter W in the fifth spot of the VIN, this early 1968 edition was the only 427 with hydraulic lifters, an iron intake manifold, a single point distributor, a smog pump (Ford's Thermactor system), an automatic transmission (the four-speed was not available with the 427), and optional air conditioning. The 428SCJ used 427 LeMans connecting rods and different pistons, crank, wrist pins flywheel/flexplate, a cast-iron Police Interceptor intake manifold, and an engine oil cooler. difference in 428 blocks? - Ford Truck Enthusiasts Forums When I had Southern Automotive rebuild my engine, I delivered it to him with a set of LeMans rods. The 428 CJ cylinder heads featured an un-machined chamber of 73-76cc, 2.06" intake valves and 1.66" exhaust valves. The 406 was essentially a bored 390, and in 1963 Ford went even bigger and bored the 406 out to 427 cid. There was a special designation in the database to tell which cars had these installed". The World's largest non biased Shelby Cobra related site! Cobra Jet Crankshaft (engineering number detail) 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. A police interceptor may have an "A". Block, heads, manifolds, etc. Typically 360 horsepower. Yep, I'm a hack! In 2020, Ford came out with the most unique Cobra Jet in history, the All-Electric Mustang Cobra Jet 1400. Pioneered in 1967 as a stripped-down Holman and Moody prepared drag-ready Mustang for Tasca Ford, the 428 short block with 427 heads christened the KR-8 flawlessly balanced proven race engineering with factory Ford parts. document.getElementById( "ak_js_3" ).setAttribute( "value", ( new Date() ).getTime() ); Get Your Top 50 Fastest Muscle Cars ChartFREE! 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. It was only installed in mid-size (1970-71) and pony cars (1971 only). Both the Cobra and Super Cobra Jets had dished cast pistons, and used stronger connecting rods than the standard 428. The program was engineered, designed, tested, validated, released, and certified between January 1967 and August 1968. the 428 CJ. 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 engine was widely praised for its performance and design, and it was by far the most powerful Ford production motor available. While the 1970 Ford Mustang Mach 1 came in eighth place on this list, it came in 21st place in the fastest muscle cars of 1970 rankings. The 351 Ford Cobra jet also had four-bolt mains, hydraulic valve lifters, high lift/duration cams, and larger valves than the standard 351. The 1967 Shelby GT500 featured a new 428 cid engine that had been used in the Thunderbirds and Galaxies. These had the larger 600 cfm 4100. Cast iron intake manifold identical to the aluminum one on the police interceptor. . Comparison of Major 428 Engine Components - 428 Cobra Jet FE guys: Difference between 427 and 428 Cobra Jet? Educate me! Needless to say, the success of the Cobra Jet package guaranteed its reappearance for the '69 model year. 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. Thought they would both go same time. Sadly, Ford discontinued the 429 Cobra Jet Mustang and other CJ-powered cars halfway through 1971. 1999 - 2022 Scott A. Hollenbeck. The Mustang had grown bigger than ever, with a weight of nearly two tons. Starting in February 1969 this complete package could be ordered as the "Drag Pack" option. By 1974 the emissions crap that was added to the engine killed the power. 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. The basic casting is the same, but a 428 had a 4.13 inch bore and the 390 has a 4.05 bore stock. Although the Mustang had been completely redone, little changed in the CJ engine for 1969, and it was still available in any type of Mustang. The Mercury Cougar underwent styling updates in 1969, including transitioning to Coke bottle styling and eliminating side vent windows. Still, a '71 'Jet had a 0-60 time of 6.5 seconds and a quarter-mile time of 14.1 seconds, so it was no snail. 428 CJ's came in the 69 so it would be more correct as far as appearance goes. You can have it straight (CJ 428) or with optional CJ 428 Ram, the breathtaker. I think, but don't remember, that the SCJ would come in cars optioned with the "drag pack.". 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. In addition, the Spoiler II was available in either a red or blue paint schemehonoring legendary NASCAR drivers Cale Yarborough and Dan Gurney, respectively. Ford had introduced the 385 series in 1968, and the 429 first appeared in the Thunderbird. These are a few ways you can tell. They were almost identical to the standard Cobra Jets, but had stronger internals. The SCJ block is the same as a CJ. Also, the stroke on a 428 should be 3.98. Even less common with a production of maybe 3,000. A remedy was in the making, as the 428 Cobra Jet package for the Mustang began its metamorphosis. There is only one high-performance damper of the latter era: The SCJ damper, which has a heavy inertia ring, much like the LeMans. The 427 quickly became one of the most popular and powerful Ford engines, pumping out 425 horsepower. What makes the 428 Super Cobra Jet engine so super? We have 2 blocks here-both are 428s but one has some additional webbing on the main bearings. The 429 is a 70 complete out of a Lincoln or some other 4 door. This victory was not lost on anyone--the public, the press, and Ford alike--much less the competition. Bore and stroke was 4.0 X 3.5. 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. 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. 385cm = 151.6 inches. The factory power rating seemed to be a typo. The problem with the 427 was that it was far too expensive to produce for use in a regular production car. This was not enough to beat the big-block Camaro, however, which ran the quarter a full second quicker. The "SUPER" mark does NOT mean that the pistons were used only in SCJs! Ford released a few high performance variants of the 429, including the Boss 429 and the Cobra Jets. 1969 Cobras are often mistakingly called Torino Cobras, which didnt appear until 1970. 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. What to look for when buying the brutish Ford Torino GT The smaller bore of the 428 was well within normal production line capabilities. Enter Bob Tasca, a Ford dealer who had a history of experimenting with Ford big-blocks for his dealership-sponsored race cars. The W-code 427 and 428 CJ shared just about everything except main bearing caps and bore/stroke dimensions. In 1969, 10 different Mustang engine options were available. 1968 was the only second year of the Cougar, which only received minor revisions, including side marker lights and front shoulder belts. Building Ford's Fabulous 429 Super Cobra Jet - OnAllCylinders The Camaro, Firebird, and Barracuda had eroded the pony car market Ford created in 1964. The 428 Cobra Jet powered some of the fastest Ford Muscle Cars from 1968 to 1970, over nine Ford and Mercury models. The 429/460 is going to be the cheaper of the engines to build. Your email address will not be published. 427 cobra jet vs a 69 boss 429 | Ford Mustang Forum Typical Cobra Jet Crankshaft Several different cranks were used in 428 CJ and SCJ engines during the course of production. 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. The SCJ timing pointer is slightly longer to clear the larger harmonic balancer. Super Cobra Jet oil cooler adapter As old as it is, all the valves, springs, retainers, locks, shafts, rockers, etc, should be replaced with at minimum, OEM quality (readily available through "normal" engine parts sources). Super Cobra Jets also had oil coolers as standard, which were options for the Cobra Jets. The 429 blocks are incredibly solid, and the Cobra Jets got a high nodularity, Brinnel tested crank and forged rods. Cobra Make, Engine: Posts: 717. The Mustang still used small blocks in their engines, with the 289 cid being the largest available. The Cougar was available in either standard or XR-7 trim, with option packages including the GT and the performance-trim Eliminator. The immaculate 1968 427 seen here powers Craig Keith's Cougar XR-7G and resides in West Brookfield. 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. Super Cobra Jet harmonic balancer counter weight, 1 p.s. 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. Ford gave the electric Cobra Jet its name because it produces 1,400 horsepower and 1,100 lb-ft of torque. The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. The Ford 428 Big Block V8 Birthed The Cobra Jet And - DrivingLine * These are service part numbers, not engineering numbers. The 429 was not produced until 1969. I want to register an account for free right now! Never looked at or worked on any big block other than a 390. the 428 CJ. This explains why Ford went with the 390 in the Mustang instead of the 427. Be sure to subscribe if you like content like this! As we all understand, the 390 wasn't standing up to the 396, and sales reflected this. The 428CJ also used a superior cast iron intake and better exhaust manifolds. When the Ford execs at their plant in Dearborn, Michigan saw Tascas KR-8 428 engine in person they were impressed. Includes year, model, engine, 1/4 mile times, and moreabsolutely free! Bought a new 69 Mach 1 and ran at the strip w best et 12.72. The Cobra Jet 428 motors in Mustangs used heads from the 427, plus other enhancements to really put some hair on their chest. Most 428s in 7 liter [COLOR=#0000ff! He had been involved in the Thunderbolt program back in 1964. For a better experience, please enable JavaScript in your browser before proceeding. Even in 2022, almost six decades later, the Ford Cobra Jets are still lusted over today by generations of gearheads. Yet, while they were considered big blocks, the first generation of the Ford FE never had displacements of larger than 400 cid. It was powered exclusively by a 428 in either CJ or SCJ fashion. If I can, I will try to get a picture of the "SUPER" stamp to show. This was the year that stricter emissions laws went into effect, and emphasis was shifting away from performance. The difference was forged pistons, solid lifter cam and four bolt mains. Though almost identical in displacement, Ford based the new 429 Cobra and Super Cobra Jets on the 385 series. (REGISTERED USERS DO NOT SEE THIS POST/AD! At the same time, a Ford dealer named Bob Tasca was also looking to get more power out of his 390-powered Mustangs. All of the new Ford Cobra Jets are supercharged, except the Cobra Jet TT from 2013 that has twin-turbos. Past Cats: '69 Std. ), 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. It's important to note that all other components of the SCJ engine do in fact interchange with the CJ engine. 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. All FE dampers are neutrally balanced, so all can be interchanged between motors if you understand the pulley requirements. But, from the factory it was never as powerful as the (solid lifter) 427. Ford introduced their second generation of FE V8 big block engines in 1962 with the 406 cid big block. Note that the explanation says that three other cars were built like this at San Jose! You cannot really compare 69 with the 74 cars. The 429 heads were incredibly free flowing, and in reality some of the best Ford big block heads ever created. I spoke to Rob Celedon the other day and his SCJ car has the same stamp on the block. From 2008-2012, Ford used a supercharged version of their 5.4 L Modular V8. Though I've seen references to engineering numbers on flexplates, I've never actually seen any kind of stamped or cast number on a flexplate. Super Cobra Jet horn reinforcement bracket The 429 SCJ was a stronger version on the CJ. 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. 390 Vs 428 block | Vintage Mustang Forums See if you can determine if these motors you are looking at are CJ's. So the question remains, how much horsepower does a stock 428 CJ really deliver? The most comprehensive guide to detailing a 428 Cobra Jet ever published. Initially, Ford limited production to only 50, but later increased that by 250 due to popular demand.
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