What is the difference between a Ford 427 and 428? - Quora Too bad can't get the vin off the block to see what year the engine. One of the easier things to look for is the "C" that is sand-cast in the back of the block, as shown in . Ford crankshafts are identified by basic part number 6303. 2000-09-03T19:44. 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. The later IUB CJ and IUA SCJ were 69-70 428 cranks. Building Ford's Fabulous 429 Super Cobra Jet - OnAllCylinders Apr 23, 2008. What's the difference? - Club Cobra The Mercury 410 was a 4.05 bore 390 block and a 3.98 stroke crank. GT500 KR models all used the Cobra Jet engines. 428 Cobra Jet vs. 428 Super Cobra Jet This '69 Mustang features the legendary 428 cubic-inch Cobra Jet V8 engine option. FE Big-Block Forum: Difference between a 428 & a 428 cj . Another thing to consider is the 429 'Thunder Jet'. Although the 428 (and its Cobra Jet variant) was a great street engine when installed in certain Galaxies, Police Interceptors and Mustangs, it also had very tight tolerances and cost more to manufacture than it ever made for . 429 Cobra Jet vs 429 Thunder Jet - 460 Ford Forum The 429 was short lived and I will admit that it has more potential than the 428, the project really never left the ground. Then, on April 1, came the 1968 Ford Mustang 428 Cobra Jet. Of these, four of the cars made it to finals, proving the impressiveness of the Cobra Jet engine. Midway through the 1967 model year, the 427 was swapped out for a newer 428 Cobra Jet engine equipped with a Holley four-barrel carburetor. V-8 and the refined, velvet hammer Ford 428-cu.in. Actually, rebuilding a 428 using modern methods costs significantly MORE than $2,500. In the quarter-mile, a one-second difference is a lot of car lengths. also, the 428 Police interceptor was pretty good. Does running on propane or low rpms as a pump. Ford 429CJ and 429SCJ V-8 | Hemmings Most 428s have a weld A on the back of the block . The main bearing journal diameter measures between 2.7484 and 2.7492 inches. 429? The SCJ block is the same as a CJ. Block difference between a 428 and a 428 Cobra Jet - The FORDification ... 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). It's amazing the difference between a 428 and 429 cobra jet engine. Thunder Jet Vs Cobra Jet - TorinoCycloneTechnicalForum The IUA SCJ uses the hatchet crank spacer. Best low end torque. 428 Police Interceptor Motor questions | The H.A.M.B. This pump is for a vehicle equipped with a generator. Firstly, "Cobra Jet" is the coolest engine name ever. 6 65Custom Registered There is a difference between the standard 428 and the 428 Cobra Jet block. After some break-in miles, we'd . 358.9. You would be better off today with new Cobra Jet heads or the new Jon Kaase BOSS 9 aluminum head. Fastest AFR headed BBF on 460Ford.com. Only show this user. Smith noted that the 428 Thunderbird 7-Litre V-8's engine block actually edges out the later Cobra Jet 428's engine block slightly in strength and thickness--but according . The CJ was an engine option, the SCJ the upgraded version of the 428 CJ was what . The primary and most significant difference will be the heads. Nov 13, 2013. Nascar soon after the release of the 429 put a . Ford's legacy of powerful big block V8s dates back to 1958 with the skirted Ford FE Series 332/352ci engines that ultimately grew to 427ci by 1963 and 428ci by 1966. Difference b/w GT500 and GT500KR | Vintage Mustang Forums 428 vs. 428CJ ?? - 332-428 Ford FE Engine Forum There's also a chance of the CJ being a 4-bolt, but not all of them were, and 4-bolts sometimes found their way into TJ's. Fastest street legal BBF on 460Ford.com. Please help with value of 428 cobra jet | Ford Muscle Cars Tech Forum The 428 Cobra Jet engine used a nodular cast iron block and crankshaft, forged steel piston rods and aluminum pistons. the 429 thunder jet is the base 429 4v. A 428 behind the block will have a welded A , a cj and scj will have a C shaped weld on back . The SCJ block is identical to the CJ block. It has been sitting in storage for years and he would like to sell it. Ford 390 FE Big Block Engine Guide | Junkyard Mob There are two common dampers for the FE: The 1958-1967 design and the 1968 to 1976 design. 3) An oil cooler That's basically it. The 428 CJ and 428 SCJ were both rated at 335 horsepower which was a wink-wink - "yeah right" horsepower rating. Introduced in 1968, the 428 Cobra . 4 . I went online and got some info on verifying it as a 428 & a CJ by the numbers on the . Although it had nearly the same displacement as the 427, the 428 was much easier to build, and it featured a 4.13 inch bore and a 3.98 stroke (compared to the 3.784 inch stroke found in the 427 and the 390). Another clue this engine was underrated was the smaller 390 V8 with a four-barrel carb was also rated at 335 HP. Although it doesn't tell for sure about the block it will confirm whether the crank is a 428 stroke. Ford claim 335 hp at 5200 rpm for the 428 Cobra Jet versus Huntington's analysis which determined output closer to 410 hp at 5600 rpm. The 428 Cobra Jet could be made on a regular production line, not requiring the exacting tolerances required by the 427. The GT500 KR uses two small lift hooks in 1968. The 428's were a 4.13 bore block and a 3.98 stroke crank. 428 Cobra Jet Engine Detailing, Part 3 - It's Worn Note the differences here between the original-style spacers shown and the service replacements that were sold over the counter. We have 2 blocks here-both are 428s but one has some additional webbing on the main bearings. R. . The 332-352-360-390-406 428 series of Ford Big Blocks are all essentially the same…They just juggled bore and stroke dimensions…The 427 racing engine is also of this family but has a unique short stroke-big bore design with a completely different crankshaft and heads…Getting 700 HP out of a 428 is largely a dream, the basic design will simply not support it…Cobra Jet and SCJ were . "CS: The GT500s had a 428, but there wasn't any less horsepower. There was also the MEL (Mercury-Edsel-Lincoln) fat block displacing 430 and 462ci produced from 1958-68, a low-revving luxury car . It was based on the staid 428-cid big-car engine, but had larger valve heads and the race-brewed 427's intake manifold. Note the difference in engine speed between the two specs. The crank used in 428 CJ and SCJ engines is made of cast iron with a 3.98-inch stroke. 1969 Ford Mustang Mach 1 428 Cobra Jet - Barn Finds The Ford 428 Big Block V8 Birthed The Cobra Jet And Changed Mustang ... High costs kept the 427 largely in pit lane, with very few production cars benefiting from its hard-won performance capabilities. The most notable Ford FE-based performance engines are the 427, the 428, and the 428 Cobra Jet. The 428 broke many speed and time records which I am unaware that the 429 did any. The difference in cubic inches comes from the crank stroke. What's the difference between a 428, a 428 Cobra Jet and a 428 SCJ? Or ... Show All. The 429 was not produced until 1969. Crankshaft | Mustang 428 Cobra Jet Registry The Cobra Jet 428 motors in Mustangs used heads from the 427, plus other enhancements to really put some hair on their chest. This is a nice damper. The 428 Cobra jet. The 428 CJ and SCJ blocks have extra main bearing webbing and thicker main caps than the normal 390 or 428. 428's never had cross bolted mains, unlike the 427 (and a few 406's). Answer: Q: What is the difference between a Ford 427 and 428? This combination would have fired the Mach 1 through the ¼ mile in around 14.3 seconds, which is an impressive number. The early design has an inertia ring that is 0.75" wide with a groove in it. 390 to 428 conversion (Ford) - Car Talk Community Road Hog! 1969 Ford Galaxie XL 429 Cobra Jet - Barn Finds There was also the 428 Cobra Jet and Super Cobra Jet; horsepower ratings were the same with both. . 1969 Mustang Engine Information & Specs - 428 Cobra Jet V8 428 Engines | Classic Cougar Community What intake ? Step 3. 332-428 Ford FE Engine Forum-What's the difference between a 428, 428 ... . I was wondering if anyone knows the difference between a regular 428 block and a 428 Cobra Jet block. Ford warmed up the 428 with nothing more than off-the-shelf parts to achieve the legendary 428 Cobra Jet of 1968. A 429 has a 3.590" inch stroke, and a 460 has a 3.850" inch stroke.just a hair over a 1/4" inch extra stroke. This engine makes gobs of horsepower at the sacrifice of torque . The 428 police interceptor engine could be found on both the 1967 Shelby GT500 and the 1968 GT500KR. The 410 was a 66-67 Mercury only engine option. The Cobra Jet used heavier connecting rods with a 13/32 rod bolt and a nodular iron crankshaft casting #1UB. 1969 Ford Mustang Mach 1 428 CJ/SCJ - Ridiculously Underrated What to look for when buying the brutish Ford Torino GT The 428 CJ and 428 SCJ were the Mach 1's best performance engine options. They have the welbs as well on the inside of the block for cross bolts mains but not drilled yet . Comparing the 428 to the 429 is unfair for most compare the 69-70 Mustang with the 428 to the 71 with the 429, and the 71 body is a bit heavier. #2. . The 428CJ also used a superior cast iron intake and better exhaust manifolds. The 410 utilized a 390 block and 428 crankshaft and was actually a production standard for some 1966 and 1967 Mercurys. Flow Comparison Between Factory 428 Cobra Jet Heads and ... - FE Power The Best 1968 Shelby Webpage - theCoralsnake.com The later piston, which appears starting around December 1968, is marked "428" and "SUPER" (thanks to Randy Pollock for the picture), and differs from the earlier pistons by having additional metal in the pin boss area. what's a 428 cobra jet engine worth - Hot Rod Forum The 428 Cobra Jet was a performance version of the 428 FE. Although the original Ford Mustang was a hit with younger crowds from its inception . It is difficult to decode one when installed in a car, but when it is out there are a few things to look for. 428? What Is the Shelby GT500 KR Police Interceptor? - CJ Pony Parts True output for both engines touched 400 horsepower at the very least. How To Identify A 428 Ford Engine? - Lister Info Reply. boss 429 vs 428 cj? - StangNet The 428 unit is maybe worth $100. The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. This is to offset the heavier LeMans rods used in the SCJ. 427, 428, 429!!! Would someone please explain the differences of these ... 1966 Ford Galaxie 500 7-Litre | Hemmings I have been doing some research on this and are the industrial blocks cast from a lower grade iron? Ford FE engine - Wikipedia cobra jets have bigger ports, valves, and manifolds,the engines are built for more heavy duty performance. It's Worn • Hard Core Resto Tech: Detailing a 428 Cobra Jet... . The intake most times have a stock intake ...Now a cj 428 is externally ballanced with a round weight behind the ballancer on the outside . 427 vs. 428 vs. 429 - Ford Muscle Cars Tech Forum 428 Super Cobra Jet Internal structure differences included Lemans type cap screw rods The capscrews were shorter than the 427's to clear the block Externally balanced External engine oil cooler Here is some 429 info I gleaned off the net: First was the base 429, known as the Thunder Jet (TJ). The valve stem diameter is 0.371 inches and the valve lifters are hydraulic. it was used in t- birds,LTDs, and torinos. These are a few ways you can tell. Choose One Mustang: 1969 Mach 1 Versus 1970 BOSS 302 1970 Ford F100 2WD SB 447 Strokered FE w/ T19 Bullitt390 New Member It was the old 428 block with a lot of changes. Where the two differed was bottom-end construction. 1968 Ford Mustang 428 Cobra Jet - HowStuffWorks The 428 should be between 2.022 and 2.037 inches, with the CJ engine measuring 2.080 to 2.097 inches. Measure the intake valve diameter. 428 junk or Cobra Jet? How to tell. - Vintage Mustang Forums Because of the long throw, the 428 was more of a low rpm / torque motor were as the 427 was a high rpm race motor. FE guys: Difference between 427 and 428 Cobra Jet? - The H.A.M.B. I think the only change I would make to this particular car is to possibly swap in a Tremec T56 Magnum XL 6-speed manual transmission. Cobra Jet - Hot Rod Forum 428 Cobra Jet Engine Detailing, Part 3 The last two issues, we brought you Part 1 and Part 2 of Marcus Anghel's exhaustive deep dive into how to detail a 428 Cobra Jet engine to concours level. I'll bet that you were hoping that we would be lifting the Mustang's hood to reveal the original 428 Cobra Jet V8 and the 4-speed manual transmission. Both engines are FE series engines but have different characteristics and specifications. Differences lie mostly in the main bearing webbing, which is something you must be mindful of, depending upon how you . The "SUPER" mark does NOT mean that the pistons were used only in SCJs! That's bull%$#@. . The Cobra Jet heads have been given a minor bowl clean-up, but are otherwise stock. CJ = D0OR-E, TJ = C8VE, C9VE, D0VE. I've heard this could be a Cobra Jet but I've also heard this might not be the case. The longer stroke (3.98 vs. 3.78 for the 427) gave the engine powerful low-end punch. A special option available for 1969 in the Cobra Jet Mustang included a 428 with internal modifications. Testing 4-2-8…How Much Horsepower Does the Ford 428 Cobra Jet Really Make? The Cobra Jet was a high-performance version of Ford's 428 big-block and it was so laughably underrated that even the NHRA ignored Ford . The low riser, revised, 427 heads had huge rectangular ports. The 429? Sponsored Links # 4 ( permalink) 09-15-2013, 09:23 PM Not Ranked Check the intake casting number, the head casting number and if the heads are of the bore and stroke. V-8. The 428 Cobra Jet used an external oil cooler as well. Maybe even throw a little nitrous on top of that 428, and call it a day. Ford Mustang Cobra Jet Engine - The History Of - MotorTrend The 428 Cobra Jet has greater low-end torque than the 427, thanks to its longer stroke. 390 heads will have 6090 h stamped between the spark plugs , a 428 will have 6090 -N between spark plugs showing it is a cj . The IU was the very first 428 crank to come out in 66 and used till 68 in the std 428,428PI and the 410. The 428 Cobra Jet powered some of the fastest Ford Muscle Cars from 1968-1970 over nine different Ford and Mercury models. However, it wasn't Ford Engineers that first developed this impressive powerplant. The 428 Cobra Jet, launched in April 1968, was a version of the 428 FE engine built for performance rather than cruising smoothness. The connecting rod journal diameter measures between 2.4380 and 2.4388 inches. Year: 1969 "Q" Code (Cobra Jet) bbl: 4: Cylinders: 8: Power (hp) 335 hp @ 5,400 RPM: Torque (lb/ft) 440 hp @ 3,400 RPM: Compression: Launched in April 1968, it was built on a regular production line using a variety of cylinder heads combined with a 735 CFM Holley four-barrel carburetor. somewhat less, these were also installed on 70's jet boat motors. The heads and intake were unique to the 428CJ. 428 Vs 429 - Mercury Cougar Owners As a result, the 428 was less rev-happy but it gained a low-end torque punch that was absent in the 427. Engine Basics. In 1967, Bob Tasca Sr. combined race-proven engineering with factory Ford parts to create a high-performance Mustang supercar dubbed the KR-8. 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. Ford 7-Liter Engines Deciphered: 427, 428, 429 | Themustangsource The IUB is a 428 CJ crank so yes it'll fit in the 428 block. Ford Big-Blocks: The Ultimate FE Series 332-428 Engine Guide 2) Cast iron PI (Police Interceptor) intake manifold. 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 The difference between the earlier and later versions of the pump is the location of mounting points for either generator or alternator brackets. Most have the 1ub cranks and the good rods. From there, it's another small step up to the Super Cobra Jet package in your Torino, which is introduced when you order the 3.91 ($155) or 4.30 ($206) axle ratio.The CJ's two-bolt mains give way to four-bolt mains, the pistons are forged aluminum instead of cast, a 780 CFM Holley carb sits atop a bespoke intake manifold, there's an oil cooler hanging off the front of the radiator support, and . What is the difference between 428 CJ and 428 SCJ? Building Ford's Fabulous 429 Super Cobra Jet. Typical Cobra Jet Crankshaft. 428 crank 1U | Mercury Cougar Owners The differences for the SCJ were: 1) The beefer 427 "LeMans" connecting rods. 22 Though some claim the 428 CJ actually made in excess of 400 hp, we observed 365.1 hp at 4,800 rpm, almost 10 percent more than advertised. 428 CJ vs. 429 CJ- The Winner is...? - Mustangsandmore Forum Archive The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. With the Muscle Car horsepower race escalating for the 1968 season, Ford Motor Company introduced its all-new 428-cubic inch Cobra Jet engine. Connecting rods are similar to those used in the 390 GT, but CJ and Police Interceptor engines are fitted with 13/32" bolts. The CJ block varies from the plain 428 in that it has extra webs cast into the main bearing saddles, whereas the plain 428 does not. Save Share. DO NOT confuse this with any 428 out of a Tbird. Differences lie mostly in the main bearing webbing, which is something you must be mindful of, depending upon how you will use your engine." . The flow data shown at right shows a comparison between out of the box Edelbrock heads and factory Ford 428 Cobra Jet heads. Measuring 2.34" X 1.34", the ports were larger than the 427 racing heads. Both are unnessarily heavy, and no better performers than what the aftermarket offers now. How to Identify a Ford 428 Engine - It Still Runs 428 police interceptor-cobra jet - YouTube 1UB crank | Ford Forums Automotive historians have extensively documented the differences between the violent and brutal Ford 427-cu.in. . Both sets of heads use identical valve sizes, and were both tested with a clay radius on the intake port and a 1 3/4" pipe on the exhaust . Ford Big-Block Engine Parts Interchange Specifications The heavily modified engine ostensibly had a 335 horsepower rating, although it's widely believed that .