Difference between 428 and 428 cobra jet. The Boss '9 has comletely different heads and the car was customized by Kar Kraft to except that engine. It worked very well on the street. Were all 428 Cobra Jet Mustangs equipped with automatic choke carburetors? Were all 428 Cobra Jet Mustangs equipped with single-point distributors? Were all 428 Cobra Jet Mustangs equipped with thermactor (smog) systems? Were some 1969 428 Cobra Jet Mustangs equipped with 1968-style ram air systems? What is the difference between PCV and PVC? Mustangsandmore Forum Archive '69 to '73 -- The Musclecar Mustang 428 CJ vs. Block difference between a 428 and a 428 Cobra Jet by leavittt » Wed Jul 08, 2009 5:59 pm I was wondering if anyone knows the difference between a regular 428 block and a 428 Cobra Jet block. The only other difference was the air cleaner which had some air valves that opened up at low vacuum to reduce inlet restriction. In '66 the 428 base engine was just a bored and stroked 390. Anyone know the performance difference between a MKIII with a 427 and one outfitted with the 428 ? thanks sdr The 428 Cobra Jet, introduced April 1968, was a high torque, quiet, and inexpensively built engine. Logo design by Marc Tescione. Tasca, the 428 PI, and the released 428 CJ. If you're looking for something posted in the registry forum you should use the registry forum search interface instead. Oct 31, 2007 · I have a 1966 Ford Galaxie with a 428 and I am getting ready to rebuild the engine. 1969 - 1970 428 CJs and SCJs that were equipped Jul 24, 2004 · What is the difference between the Q and R codes in the 69 Mach 1s? I know they are both 428, but does one code designate Shaker hood, etc. Let’s look at the differences between a 428 Cobra Jet and the 428 Super Cobra Jet engine, shall we? Feb 13, 2004 · Cobra Jet engines received low-riser heads with a "rough-cast" combustion chamber (2. THANKS! Jan 28, 2008 · The engine was underratedat 335 hp (250 kW) at 5200 rpm. Feb 19, 2021 · How do you identify a regular 428 FE engine from a 390 FE engine? I am going to try and find a useable 428 FE block and I think I may have found a engine in a 1966 galaxy that is completely rusty,frame is completely mangled but still has the engine. There were many 427s and several 428's but that's the main gist of it, hoop98,May 19, 2013 SHARE POST #4 Joined: Feb 11, 2008 Posts: 6,846 Profile Page Oct 20, 2022 · 428 and 429 Ford Super Cobra Jet and Cobra Jet engine guide. DO NOT confuse this with any 428 out of a Tbird. Mar 8, 2018 · The Q-code Cobra Jet 428 was rated at a very conservative 335hp @ 5600rpm. I could use some help from owners of 1968 and SCJ Mustangs since I don't have many such parts on hand! There's a common misconception that the 5th character in the Vehicle Identification Number (VIN) can be used to determine if a car is equipped with a Cobra Jet (CJ) or Super Cobra Jet (SCJ) engine. Mar 29, 2003 · Administrator, Mustang 428 Cobra Jet Registry, Owner, Muscle Car Research LLC 1970 Calypso Coral 428 CJ Mach 1 Mustang, 2019 Lincoln MKZ 3. Tasca, there are in fact more than 30 design differences between the components used by Mr. Oct 19, 2008 · Here are some super-noob questions: What's the diff between the 427, 428, 429? A friend has a 68 427 for sale. Sep 27, 2001 · The 69 Mach I came with a 428 CJ not a 429. In truth, these codes identify the type of induction system installed during factory assembly. Mar 18, 2004 · Thanks. 09int. I'm sure there is probably more differences but this is the biggest, IMO. I am particularly interested in documenting the differences in components as they changed from 1968 through 1970 and the differences between Cobra Jet and Super Cobra Jet components. 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 . Mar 21, 2004 · Best for a street car. Some of the other unique facts about the 428 are that it's externally balanced and due to the different piston and connecting rod combos used by the factory. All 428CJ's came with a hydraulic camshaft, but the 1966 PI engine had a solid camshaft installed. Oct 25, 2024 · To identify a Ford 428 engine, check the casting number on the block (like C6ME or C7AE) and look for identification codes near the oil filter. 428cj has a round weight for it is internally ballanced . Aug 8, 2021 · 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. 66ex. Examine components like the intake manifold to confirm its variant, such as Cobra Jet or Police Interceptor. The 429 is in the same family as the 460, so, you might as well do the 460. Unless specifically noted this comparison does not include the parts that are unique to the 428 Super Cobra Jet engine. com The CJ had the good heads, cam but had the iron intake. 428 Engine Specifications | Classic Cars - CarMemories. Jul 8, 2009 · Block difference between a 428 and a 428 Cobra Jet by leavittt » Wed Jul 08, 2009 5:59 pm I was wondering if anyone knows the difference between a regular 428 block and a 428 Cobra Jet block. This list and the pages behind it are a "work in progress". org Jun 8, 2008 · 428 visual from 390 , look behind crank ballancer . Best low end torque. The BIG difference is in the engine. valves), and the valves were closer together than on other FE heads so that the CJ heads would fit all FE block sizes. See full list on 428cobrajet. We have 2 blocks here-both are 428s but one has some additional webbing on the main bearings. There are 4 different crankshafts that could be installed in the 428. ? Just curious, as I am thinking about buying a 428 Mach 1 but not sure if it is a Cobra Jet or what makes it a Cobra Jet, or if either of these codes designate the Shaker hood. 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. The 427 is real expensive, but puts out the most HP. The 428 Cobra jet. The 428 Cobra Jet actually produced 400 to 410 hp (299-306 kW) 428 Super Cobra Jet The 428 Super Cobra Jet used the same top end as the 428 Cobra Jet but the crankshaft, connecting rods, and pistons are different. In '67 the PI engine got the 390GT cam. The Mustang 428 Cobra Jet registry project is not related to the Ford Motor Company, Inc. also, the 428 Police interceptor was pretty good. I am assuming there are more differences than that though. The 428 Cobra Jet, introduced April 1968, was a high torque, quiet, inexpensively built engine. Not intended for true racing durability, it lacked the bottom end features of the side-oiler 427. And it comes in 3 versions, low rise, mediun riser, high Nov 21, 2016 · Ford’s 428 Cobra Jet doesn’t need cross-bolted mains and solid lifters to make the scene, check out our buildup and and dyno test of a 1969 428 Cobra Jet. Feb 22, 2018 · Thursday, February 22, 2018 What's the difference between a 428, a 428 Cobra Jet and a 428 SCJ? Or the 429, 429 cj The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. 351/428/429 Cobra Jet specs, history, vehicles, and information. Better heads, PI intake, 2. The “428 Cobra Jet” program was revealed to the public in the fall of 1967 when Hot Rod magazine published their November 1967 issue, likely written in August 1967, which included a review of the KR-8 as well as Bob Tasca’s commentary on the lack of competitive Ford street performance vehicles. scj will have a shape of cookie cutter or a hatchet shaped ballancer for it is extrenally ballanced . Jun 7, 2022 · The difference between the 429 and the 428 Cobra Jet is that the latter has a bit more horsepower. The 429 engine has a bit more torque, which makes it faster to get up to speed. The 428 PI however had the solid lifter cam from the 410 HP 427 and used the MR 427 intake manifold. The myth is that Q-codes are CJs and R-codes are SCJs. I saw a 67 429 at a show. unless it's the 70/71 429 out of a Torino Cobra. 65 Hydraulic operated valves with the 390 GT Cam. Sep 20, 2006 · Two-bolt main block Between 345-360 horsepower 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). Can someone tell me what the difference between my 428 and a cobra jet are? I bought new heads for it a few years ago from Dove and they are cj heads. Engine 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". I've heard the 428 is an FE, but what about the others? Thanks. 429 CJ- The Winner is? Note: the search utility on this page searches the pages that make up this web site, but it doesn't search through the registry forum database. 0T AWD, 2003 Mercury Marauder 300A The program was engineered, designed, tested, validated, released, and certified between January 1967 and August 1968. -1. Although many early Mustang articles suggest that the 428 Cobra Jet was designed by Mr. Missing were the cross-bolted main bearing caps and oiling improvements. May 19, 2013 · The 428 Cobra Jet ws a "hot rodded" version of the standard 428. 08 Intakes and 1. I know one has a longer stroke crank and. hfprnmq 8jip 9dkrjk zbwas gm nh7fiv u4h rmp7j qznjyy kjc6