Grue up with Ford FE. non biased Shelby Cobra related site! Ford really got it right with the 1968 428 Cobra Jet (CJ). The 428 Cobra Jet powered some of the fastest Ford Muscle Cars from 1968 to 1970, over nine Ford and Mercury models. 428 CJ's came in the 69 so it would be more correct as far as appearance goes. However, it wasnt Ford Engineers that first developed this impressive powerplant. Though different part numbers were used for standard sized CJ and SCJ pistons (perhaps to provide slightly different installation tolerances), most folks that I've talked to believe that the pistons were in fact identical. The Mustang had grown bigger than ever, with a weight of nearly two tons. ** 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? Comparison of Major 428 Engine Components - 428 Cobra Jet 427 vs. 428 vs. 429 | Ford Muscle Cars Tech Forum The 429 is the same block as the modern 460 sold in Motorsport catalogs. The 390 Mustang was getting abused at the drag strip by Chevrolets new 396 powered Camaro. Initially, Ford limited production to only 50, but later increased that by 250 due to popular demand. The connecting rod journal diameter measures between 2.4380 and 2.4388 inches. As a result, the 428 was less rev-happy but it gained a low-end torque punch that was absent in the 427. Very rare and very expensive as only about 1,200 were made. 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. But, for many, it was far too inconspicuous for them to realize it before seeing its taillights. What makes the 428 Super Cobra Jet engine so super? This became a private war between the automakers. Carroll Shelby, Bob Tasca, and the Hybrid 427/428 Engines, Best Ford Fox Body Mustang Performance Upgrades. Tasca had bolted 427 Low Riser cylinder heads on the 428, which really woke up this mill and gave it much better breathing capability while retaining the low-end torque the big FE was already noted for. Ford discontinued the 429 Cobra Jet and Super Cobra Jet options after 1971, largely due to the increasing emissions restrictions. 428 Cobra Jet Engine Detailing, Part 2 - MotorTrend Known as the Thunderbolt, this Fairlane saw very limited production and was built as a factory lightweight race car. Bore and stroke was 4.0 X 3.5. Even in 2022, almost six decades later, the Ford Cobra Jets are still lusted over today by generations of gearheads. 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. Although the '67 Mustang looked a lot like the original, it was, in fact, a completely new car with no interchangeable sheetmetal. However, a 4-speed option was also available. As we all understand, the 390 wasn't standing up to the 396, and sales reflected this. Required fields are marked *. Introduced at the height of the high-performance wars, big-block Cobra Jets acquitted themselves well in the Mustang and in other cars. The 406 was a serious development for Ford, as it catapulted them to NHRA and NASCAR victories in the mid-1960s. 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? 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. Right to the end in 1970, the 335hp rating stuck. The SCJ block is the same as a CJ, and to that they added 427 "LeMans" connecting rods, better intake manifold, and an oil cooler, plus crank, rods, pistons, wrist pins, flywheel/flexplate 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 428 is a 1969 block no heads. Mustang buyers who selected either of the optional 3.91:1 or 4.30:1 rear end gear ratios got more than just an optional axle ratio! Ford had introduced the 385 series in 1968, and the 429 first appeared in the Thunderbird. It was powered exclusively by a 428 in either CJ or SCJ fashion. 428 Cobra Jet Standard was 2.09 inch intake and 1.66 inch exhaust valves. The 429/460 is going to be the cheaper of the engines to build. Welcome to Club Cobra! The Cobra Jets had three bolt caps instead of four like the Boss, and also did not have the screw-in freeze plugs like the Boss. The 1970 description says "Available only with 428 CID 4V Cobra or Cobra Jet engine" and "Not available on Boss 302, or with other optional ratio axles". 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. Cobra Make, Engine: Previous ERA owner on break, Just a note on the LeMans rods. What Is the Shelby GT500 KR Police Interceptor? | CJ Pony Parts Super Cobra Jets also had oil coolers as standard, which were options for the Cobra Jets. Cast iron exhaust manifolds. The Cobra Jet package added $287.60 to the sticker price of a Cyclone. So the question remains, how much horsepower does a stock 428 CJ really deliver? It was only installed in mid-size (1970-71) and pony cars (1971 only). Most estimates put the 1968 Ford Cobra Jet 428s at north of 400 horsepower. They were still rated the same 335 horsepower as the Cobra Jets, which was probably still underestimated by 100 horsepower. The big-block Chevy had the edge in breathing ability, but this move closed the gap between the two engines a great deal. But of course, it was too late to change the name. 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. The factory power rating seemed to be a typo. 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. In second place is the 1968 Ford Mustang 428 Cobra Jet. The Super Cobra Jets got forged aluminum pistons and higher performance camshafts, as well as a high-rise intake manifold. Sorry, here's the other page. Originally available in any of the three Mustang body styles--coupe, fastback, or convertible--all '68 CJ Mustangs are highly sought after, even 30 years later. 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. 1968 428 Cobra Jet Drag Strip Modifications, 428 CJ Mustangs at the 1968 NHRA Winternationals, Comparison of Major 428 Engine Components, Classic Mustang Warranty Plate/Certification Label Decoder, Cobra Jet Crankshaft (engineering number detail), Super Cobra Jet harmonic balancer counter weight, 1, Super Cobra Jet harmonic balancer counter weight, 2, Super Cobra Jet harmonic balancer counter weight, 3, Super Cobra Jet harmonic balancer counter weight, 4, Super Cobra Jet horn detail (note the jumper wire and reinforcement bracket), Super Cobra Jet horn reinforcement bracket. . They did so to honor the 1968 Mustangs that won the NHRA Winternationals, and inaugurated the first Cobra Jet era. Incredibly, he too put a 428 cid block in his Mustangs, but he took it a step further than Shelby. Register now for free! It had four bolt mains, aluminum hemi-style heads and looked like no other engine. Competition was tough in the late '60s, with both GM and Chrysler offering up serious big-block performance. The back of the CJ block should have a "C" cast or welded into the back of it. In 1969, Ford created an even higher performance version, known as the 428 Super Cobra Jet. Factory horsepower and torque ratings were the same for both CJ and SCJ engines. 1969 Cobras are often mistakingly called Torino Cobras, which didnt appear until 1970.
Castle Car Park Guildford Opening Times,
Terneras De Venta En Chiquimula Guatemala,
Stocks And Noble 8 Gallon Pedal Bin,
Harehills, Leeds News,
Scottish Police Pension Calculator,
Articles D