1969 Cobras are often mistakingly called Torino Cobras, which didnt appear until 1970. 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. In '69 the 351 was good for either 250 or 290 horsepower, depending on its carburetor configuration, while the four-barrel 390 dropped somewhat to 320. 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. The 406 was a serious development for Ford, as it catapulted them to NHRA and NASCAR victories in the mid-1960s. Whereas Shelby had scrapped plans to redesign the 428s intake manifold a notorious choke point Tasca came up with a different idea. Please notethe 428 and 429 are completely different classes or families of engines. The Cobra Jet package added $287.60 to the sticker price of a Cyclone. At the '68 NHRA Winternationals in Pomona, California, Ford entered a number of specially warmed-up '68 Cobra Jet Mustangs. 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. 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. Although many early Mustang articles suggest that the 428 Cobra Jet was designed by Mr. Tasca, there are in fact more than 30 design differences between the components used by Mr. Tasca, the 428 PI, and the released 428 CJ. Cobra Jet Mustang production continued into 1970. Cast iron exhaust manifolds. Regarding the 428, it also matters if the block is a true CJ block or a police interceptor block. Ford released the original 428 in 1966, and in 1968 the Cobra Jet variant was born. . The 428 Cobra and Super Cobra Jets continued for 1970, but there was also a new 429 Cobra Jet now. 1973-1974 351 Cobra Jets had smaller valves, which resulted in a drop in horsepower on some models to 245. The Ford Cobra Jet and Super Cobra Jet were introduced in 1970, and they were improvements over the 428s. According to Ford themselves, independent dynos showed electric Cobra Jets making north of 1,500 wheel-horsepower. Hi Keiththis Ford Article isn't the best scan I've ever done but the article is very, Location: Abe Lincolns Birthplace, Finally, the PI and CJ blocks of a given era were the same. The Ford Cobra Jets are some of the most iconic engines in Ford history, and have been since their release back in 1968. 428 FE police interceptor versus cobra jet - Club Cobra FE Forums sponsored by Keith Craft Inc. Ford had introduced the 385 series in 1968, and the 429 first appeared in the Thunderbird. The 390 big-block version of the Mustang ran fairly well--well enough to post mid-15-second times in the quarter-mile. Then there was the 429 Cobra Jet (CJ). The longer stroke (3.98 vs. 3.78 for the 427) gave the engine powerful low-end punch. The problem with the 427 was that it was far too expensive to produce for use in a regular production car. Well, there you have the top 8 fastest 428 Cobra Jets. 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 428CJ was available in nine Ford, Mercury, and Shelby muscle car models between 1968-1970. 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 discontinued the 429 Cobra Jet and Super Cobra Jet options after 1971, largely due to the increasing emissions restrictions. Yet, while they were considered big blocks, the first generation of the Ford FE never had displacements of larger than 400 cid. Super Cobra Jet harmonic balancer counter weight, 1 chuck, The same naming convention was applied to the 429 engine as well. Untamed European elegance indeed. The heads and intake were unique to the 428CJ. The SCJ timing pointer is slightly longer to clear the larger harmonic balancer. The 428, on the other hand, has a smaller bore and longer stroke producing more torque and is well-suited to street-strip action. This was not enough to beat the big-block Camaro, however, which ran the quarter a full second quicker. In the quarter-mile, a one-second difference is a lot of car lengths. Another Dumb Question: 428CJ vs 428SCJ - Club Cobra What's the difference between a 428, 428 Police interceptor, and a A remedy was in the making, as the 428 Cobra Jet package for the Mustang began its metamorphosis. 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). Incredibly, he too put a 428 cid block in his Mustangs, but he took it a step further than Shelby. Super Cobra Jet horn jumper wire. Register now for free! If it's to be a "driver", compression needs to be lowered to use "pump . Block, heads, manifolds, etc. Say Cyclone CJ. The Ford engineers kept the KR-8 so they could break it down and discover what made it so powerful. They had introduced the 385 series in 1968 to start replacing the outgoing FE series. 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? Ford had produced a 428ci version of the FE engine for fleet use in police cars and also for some of the fullsize luxury cars. . The 428 Police Interceptor Engine The 428 police interceptor engine could be found on both the 1967 Shelby GT500 and the 1968 GT500KR. Ford got down to business and began by beefing up the bottom of the 428 block casting, which included heavier main bearing caps. I want to register an account for free right now! Ford Mustang Cobra Jet Engine - The History Of - MotorTrend 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. Ford, realizing the sin of allowing the last Cobra Jet production engine to be the lukewarm 351 Cleveland Cobra Jet, finally revived the badging in 2008. In 1964, the 427 was shoehorned into the Fairlane, Ford's midsized entry, between the Galaxie on the big end and the Falcon on the small. 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. Super Cobra Jet horn reinforcement bracket 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. Its not very well known, but Ford also branded another Cobra Jet from 1971-1974 the 351 Cleveland. No other numbers are CJ. 1968 was when the Cyclone lost its affiliation with the Comet nameplate, a good move considering it was on its way out entirely by 1969. 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. The Super Cobra Jet, available only with a 3.91 or 4.30 rear axle ratio, included additional features. However, it wasn't Ford Engineers that first developed this impressive powerplant. Not Ranked. YES! However, in true Cobra Jet fashion, Ford underestimated the horsepower from the factory. In fifth place is the 1969 Mercury Cyclone CJ. Some SCJ block had the word "super" stamped on the rear. In 1970, Ford began phasing out the FE engines in favor of the new 385 big block series of engines. Ford released a few high performance variants of the 429, including the Boss 429 and the Cobra Jets. 427 cobra jet vs a 69 boss 429 | Ford Mustang Forum Compression was lowered from 10.7:1 to 9.0:1, and in 1971 it actually made 5 horsepower less than the standard 351 at 280 horsepower. Cobra Make, Engine: Posts: 717. The CJ came in the GTs place, powered by a 428CJ and a Spoiler variation that appeared midyear with a standard rear wing. The largest was the 390 cid, which Ford first brought out in 1961. 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. Increased Ebay value in a few strokes of a hammer! I've heard this could be a Cobra Jet but I've also heard this might not be the case. 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. Ford branded the new 428 the Ford Cobra Jet engine, and they also put it in the Fairlane and Torino. These are a few ways you can tell. While the Cyclone was named the fastest car of the year, having set a world record speed of 189.22 miles per hour at Daytona, the 428 version wasnt the fastest in the quarter-mile, achieving 18th place overall. As it turned out, the 427 heads massively improved both low-end torque and top-end power on 428. 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. The engine was widely praised for its performance and design, and it was by far the most powerful Ford production motor available. Mustang 428 Cobra Jet Service Parts Oil Level Indicator (Dip Stick) Oil Pan and Windage Tray Oil Pump Pistons Power Steering Fluid Cooler Power Steering Pump Radiator Radiator Cooling Fan Radiator Cooling Fan Shroud Radiator Fan Clutch Rear U-Joint Flange Reverse Lockout Rod (1970) Shock Tower Reinforcements Speedometer Gear Adapter Educate me! Although the 390 had been offered in the Mustang, the FE had seen incarnations of up to 428 ci. In lieu of reverting back to the factory 428 head castings, Tasca put heads from the 427 instead. 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 429 is a 70 complete out of a Lincoln or some other 4 door. Representation from nearly all Cobra/Daytona/GT40 manufacturers Help from all over the world for your questions Build logs for you and all members Blogs The "SUPER" mark does NOT mean that the pistons were used only in SCJs! Actually, rebuilding a 428 using modern methods costs significantly MORE than $2,500. We have 2 blocks here-both are 428s but one has some additional webbing on the main bearings. The value is markedly different (about double). Includes year, model, engine, 1/4 mile times, and moreabsolutely free! The real cobra jet block had reinforced webbing as well as a higher nickel content, i.e. The CJ had the good heads, cam but had the iron intake. In response to the Camaro, in mid-1967 Carroll Shelby created the first Shelby GT500 Mustang. The 427 quickly became one of the most popular and powerful Ford engines, pumping out 425 horsepower. Register now for free! FE guys: Difference between 427 and 428 Cobra Jet? In the go department, a real grabber (335 horses). 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. stronger. Super Cobra Jets also had oil coolers as standard, which were options for the Cobra Jets. George Anderson of Gessford Machine was kind enough to point me to a page from Ford's "Muscle Parts Description and Interchange" book, a supplement to the original "Muscle Parts" catalog that was published in July 1970, that clearly states that "all 428 engines use "dished" cast aluminum pistons with two sets of eyebrows cast so they can be used in right or left bank". The most comprehensive guide to detailing a 428 Cobra Jet ever published. The stage was set, and war was waged in earnest. Ford Cobra Jets came in either 351, 428, or 429 cid displacements, and there were also Super Cobra Jets, too. i am putting the motor in a FORD 1972 short bed single cab pickup. Both were used on 428 PI, passenger car and Cobra Jet applications. It was rated at 375HP (grossly underrated). The 428 Cyclone tipped the scales at 3,740 pounds, which helped give it momentum in the oval track, but held it back in the quarter-mile. A special option available for 1969 in the Cobra Jet Mustang included a 428 with internal modifications. The C marking on the rear face of blocks predated the CJ era. 428 CJ's came in the 69 so it would be more correct as far as appearance goes. 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. These only became available in the 1970 model year, as you noted. Welcome to Club Cobra! 1999 - 2022 Scott A. Hollenbeck. 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. The Super Cobra Jets got forged aluminum pistons and higher performance camshafts, as well as a high-rise intake manifold. Cast iron exhaust manifolds. Most estimates put the 1968 Ford Cobra Jet 428s at north of 400 horsepower. The V-code designated a 3.91:1 rear axle ratio, while the W-code meant a 4.30:1 rear axle ratio. Basically, a 428 is just a stroked 390, and tuned for massive torque over horsepower. The new Mustang was beautiful, and it had a large enough engine bay to take the big mill. Actually, about 400 hp were on tap in this incarnation of the 428. The 429 was not produced until 1969. A limited number of Cobra emblems placed strategically on the exterior warned people what lurked under the hood. The new 2008 Ford Cobra Jet Mustangs were built strictly for the drag strip, so they werent even given VINs. Yikes, that's huge! But times were changing, and sales were soft for performance cars across the board, and not just at Ford. The World's largest After some break-in miles, we'd likely see 375 hp and, with headers, yes, very likely 400 ponies. ID by casting number on the block of C9AE. Factory horsepower and torque ratings were the same for both CJ and SCJ engines. 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. 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. While both shared the same advertised horsepower and torque figures, the 428SCJ wasnt available with air conditioning due to the engines oil cooler location. In the March 1968 issue of Hot Rod magazine, a 68 Mustang CJ ran a 13.56-second quarter-mile time, traveling at 106.6 miles per hour. In the 60s-70s, Ford put the Cobra Jet and Super Cobra Jet engines in Mustangs, Thunderbirds, and of course, Cobras. The 429/460 is going to be the cheaper of the engines to build. An improved crank and rods were also part of the deal. A fairly mild hydraulic cam combined with the good-guy Low Riser cylinder heads made for an engine with a flat torque curve and good horsepower numbers. A different crankshaft and forged-aluminum pistons were also included. The 351 Ford Cobra jet also had four-bolt mains, hydraulic valve lifters, high lift/duration cams, and larger valves than the standard 351. I have a set of stamps capable of stamping SCJ or Holman Moody or anything else you like into a block. The A blocks were made until mid 1968 model year. 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. The 428 uses a crank with a 3.98 inch stroke and a 390 has a 3.78 inch crank. Get The Top 50 Fastest Muscle Cars chart. Best of all, unlike the fire breathing 427 FE (which was mostly installed in fullsize 1963-1967 models), the 428 CJ was commonly available in all the popular midsize Ford-Mercury muscle models. To verify an original car, you can simply look at the vehicle identification number (VIN) on the dashboard. Royce: thanx for the clarification. 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. I am a 351W guy. In 1969, 10 different Mustang engine options were available. Note that it was not thought to be possible to order an SCJ engine by itself -- the only way to get your hands on an SCJ in a Mustang was to order the optional 3.91:1 or 4.30:1 rear end gear ratios. Ford 428 Cobra Jet Engine Block & Cylinder Heads However, it wasnt Ford Engineers that first developed this impressive powerplant. I have a 428 FE engine in my car from back in the day (60's). Even less common with a production of maybe 3,000. 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). What to look for when buying the brutish Ford Torino GT Starting in 1966, you could also get a 428 Police Interceptor (only sold to police entities). Also does the cj have a lot of low end. In addition, the Spoiler II was available in either a red or blue paint schemehonoring legendary NASCAR drivers Cale Yarborough and Dan Gurney, respectively. Super Cobra Jet oil cooler adapter This was the year that stricter emissions laws went into effect, and emphasis was shifting away from performance. 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. The C blocks started to be used in mid 1967 before the CJ production started. Needless to say, the success of the Cobra Jet package guaranteed its reappearance for the '69 model year. The chambers were open head, which helped with emissions, and Ford fitted the Autolite/Ford 4300-D 750 cfm 4bbl carburetor to it. 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. The 1968 Mustang received several styling updates, including side scoops, steering wheel, side marker lights, and gas cap. But there are other types of 428's and 429's floating around out there, built for different purposes, i.e. The 428 was available as a 68 1/2, 68 and 70 model. This victory was not lost on anyone--the public, the press, and Ford alike--much less the competition. The Cobra Jet (original 428) was put together from parts from the Ford parts bins, the rods and heads were used in earlier engines but aren't referred to by any other name than Cobra Jet since. 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. : For registered members this ad will NOT show. 427 vs. 428 vs. 429 | Ford Muscle Cars Tech Forum ), 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. Very few were ordered because of the popularity of the new Mach 1 package. Known as the Thunderbolt, this Fairlane saw very limited production and was built as a factory lightweight race car. They were the be-all and end-all of rods back in the sixties, but metallurgy has far surpassed them today. Makes you wonder how many were built at the other plants. Restyled in 1970, the Mustang returned to single headlights that moved inside of the grille. 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. A forum community dedicated to Mercury Cougar owners and enthusiasts. You can have it straight (CJ 428) or with optional CJ 428 Ram, the breathtaker. Now lets take a look at the various Ford Cobra Jet engines. Ford released new versions of the Cobra Jet Mustang in 2010, 2012, 2013, 2014, 2016, and 2018, making 50 annually. Sales success of the Mustang had been phenomenal in its first two years, and Ford wanted more. 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. It came in T-birds and full size Fords in the late 60's and early 70's. Credit: CarsRememberWhenAutoSales/Wikipedia. 429 Cobra Jet and Super Cobra Jet Vehicle Applications. I've heard from others who've reported finding C6AE-C, C6AE-D, and C6AE-F rods in what they believe to be original engines. Super Cobra Jet harmonic balancer counter weight, 2 The Q-code Cobra Jet 428 was rated at a very conservative 335hp @ 5600rpm. This marked the end of the original run of Ford Cobra Jet engines and vehicles. Your email address will not be published. . There have been eight new models since then, culminating in the 50th Anniversary Cobra Jets for 2018. 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. 385cm = 151.6 inches. 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. Because of this, '69 Mustang GTs are collectors' favorites. 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. Nineteen-seventy was the last year for the venerable FE-series big-block engine in the Mustang and Cougar. All this was none too soon. This field is for validation purposes and should be left unchanged. Is a 428 a cobra jet or is the cj a special 428 and is the block different between the cj and non cj. I'm not sure about how well a 429/460 fits in '67-70's though. The 351 Cobra Jet was the final Cobra Jet engine that Ford released, and it lasted from 1971-1974. These were sold as part of the Drag Pack option. It had four bolt mains, aluminum hemi-style heads and looked like no other engine. Sadly, Ford discontinued the 429 Cobra Jet Mustang and other CJ-powered cars halfway through 1971. All of the new Ford Cobra Jets are supercharged, except the Cobra Jet TT from 2013 that has twin-turbos. The Ford 427 became immortalized in 1966, when Ken Miles piloted it during the 1966 24 Hours of Le Mans (later chronicled in Ford v. Ferrari). 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 . I actually have some kind of answer that I hope will help. At the same time, a Ford dealer named Bob Tasca was also looking to get more power out of his 390-powered Mustangs. So instead, you have to examine the axle code on the door tag for a V or a W to verify its legit. According to the excellent Boss and Cobra Jet Mustangs by Dr. John Craft, this is how the Cobra Jet was born. The Police Interceptor contained an aluminum intake, high performance camshaft and beefier connecting rods to produce 360 hp. A common misconception seems to be that SCJs were originally equipped with forged pistons and CJs were originally equipped with cast pistons. The Camaro, Firebird, and Barracuda had eroded the pony car market Ford created in 1964. Yep, I'm a hack! The 428 Cobra Jet was born by drag racers at a Ford Dealership to nudge FoMoCo in the right direction when they needed it most to help recapture the pony car market. The smaller bore of the 428 was well within normal production line capabilities. When I had Southern Automotive rebuild my engine, I delivered it to him with a set of LeMans rods. The 429 Ford Cobra Jet pumped out 370 horsepower, while the Super Cobra Jets pushed out 375 horsepower. The back of the CJ block should have a "C" cast or welded into the back of it. The program was engineered, designed, tested, validated, released, and certified between January 1967 and August 1968. (REGISTERED USERS DO NOT SEE THIS POST/AD! The 428 is a 1969 block no heads. Massachusetts. Completely overhauled in 1968, the Mercury Cyclone underwent significant changes, including dropping the convertible and adding a fastback form. The table below summarizes the part differences between the two engines. Ford had introduced the 385 series in 1968, and the 429 first appeared in the Thunderbird. 428 cobra jet vs. 460. i was wondering if a 428 cj or a 460 would be a better engine for a street rod. It also had improved exhaust manifolds and a 735 CFM carb (a slightly modified 780 with different booster venruris). You cannot really compare 69 with the 74 cars. From 2008-2012, Ford used a supercharged version of their 5.4 L Modular V8. The 428 had a bore of 4.13" and a stroke of 3.98" and was produced from 1966 to 1970. Block difference between a 428 and a 428 Cobra Jet - The FORDification In April 1968, Ford introduced the Cobra Jet, built from a 428 Police Interceptor short block with 427 low riser heads, among other heavier-duty performance partssimilar to what Holman Moody had invented. Ford had first introduced the public to the new Ford Cobra jet powered Mustangs at the 1968 NHRA Winternationals. Cobra Jet Crankshaft (engineering number detail) 1968 through 1970 428CJ blocks were beefed up between the bores and main webbing areas for anticipated higher horsepower output. YES! The facts became clear once 428 CJ Mustangs and Fairlanes started running high 13s at the strip with zero preparation. 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 428SCJ was externally balanced with a counter weight behind a different harmonic balancer than the 428CJ. More than 18,000 were installed in 1968-1970 Mustangs alone. Bought a new 69 Mach 1 and ran at the strip w best et 12.72. Cast iron intake manifold identical to the aluminum one on the police interceptor. For this family of motors, the SCJ actually got four-bolt mains and then there was that same 5 horsepower difference. 1969 and 1970 CJ vs. SCJ parts identification. 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 main bearing journal diameter measures between 2.7484 and 2.7492 inches. Either way, you can be guaranteed it will be a monster at the drag strip and not be lacking for power. According to statistics courtesy of Marti Auto Works and copyrighted, this car was built at the San Jose assembly plant on October 1, 1968.
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