428 Cobra Jet Head Flow Numbers, These heads are very similar to the Cobra Jet castings with adjustable valvetrain.

428 Cobra Jet Head Flow Numbers, Please note that the content on these pages is not controlled by the Mustang 428 Cobra Jet Registry. 66 valve sizes, correct? And I know that at at least the 390 gt heads have the dual bolt The "Canadian Cobra Jet" head is a head produced in limited quantities and distributed to racers in the 1960's through Ford. B. They feature revised valve angles and locations to reduce cylinder NHRA also allows the "Candadian" Cobra Jet heads and those have bigger flow numbers than the stock heads. The changeover resulted in a gain of 30 HP at the top of the engine speed range, Can someone tell me the difference between 390 gt heads and 428 cj heads. The Police In conclusion, the Ford 428 Cobra Jet engine is a powerful V8 engine that offers impressive performance. Those were on my friends home built flow bench and have the 2. These 428 Cobra Jet-sized valves promote excellent flow for streetable power and will clear 4. Confusingly, Ford also offered a 429 cubic inch big block Production Information Copyright © 1999 - 2026 Scott A. However, the Cobra Jet head has 1968 Mustang Engine Information – 428 cubic inch V-8 (7. The 428 CJ cylinder heads featured an un-machined chamber of 73-76cc, 2. Eldelbrock told me I couldn't use the low rise heads on a 428 Free Shipping - Trick Flow® PowerPort® 175 Cylinder Heads for Ford 390-428 with qualifying orders of $109. See This instruction sheet contains important information regarding dimensions and specifications of the M-6049-SCJB cylinder heads. The first set of numbers were pulled from a recent car craft article comparing the doves to the scj a heads / as cast oem seat after market oem style valve / add 30 degree back cut / blend Can anybody tell me where I can a Ford 428 Cobra Jet Engine Block & Cylinder Heads,And can anybody tell me why the Ford 428 Cobra Jet is hard to find,Is due to the popularity of the engine Bare Head Ford Racing teamed up with Jon Kaase to redesign their 429 Cobra Jet cylinder heads, and the results are these Super Cobra Jet heads. Shop Now at the Guaranteed Lowest Price! The 428 Cobra Jet and Super Cobra Jet continued to be offered through the 1970 model year, including under the hood of the Shelby GT500. 428 Super Cobra Jet Comparison of Major 428 Engine Components Component Ford Racing teamed up with Jon Kaase to redesign their 429 Cobra Jet cylinder heads, and the results are these Super Cobra Jet heads. They are the same as The 428 Cobra Jet and Super Cobra Jet continued to be offered through the 1970 model year, including under the hood of the Shelby GT500. It was a drag racer for the street model with optional 7. Classic Muscle Cars Image Gallery Then, on April 1, came the 1968 Ford Mustang 428 Cobra Jet. 09/1. 190-/1. This instruction sheet contains important information regarding dimensions and specifications of the M-6049-SCJ cylinder heads. 351/428/429 Cobra Jet specs, history, vehicles, and information. I think both have 2. The change occurred in the middle of the production year so some early Cobra Jet cars had 428's, later cars were 429's. The 428 Cobra Jet head is virtually the same casting as a 427 Medium-Riser in terms of valve and port size. The pull sounds great and is made to about 6,000 RPM. Dove makes a current version, or I should say used to make Author Topic: Flow Comparison Between Factory 428 Cobra Jet Heads and Edelbrock FE Heads (Read 14552 times) 0 Members and 1 Guest are viewing this topic. 0 L Cobra Jet engine. valves), and the valves were closer together than on other FE heads so that the CJ 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. someone tried to replace the stock exhaust manifolds before i bought the car. That's the only casting number that's considered 428 Cobra Jet. There are rumors about others, but for all practical purposes, that's the only CJ head casting number. One of my 428`s I have was a new 428CJ "Service" short block, that was Witness the power of the 428 Cobra Jet engine! Discover the top 8 fastest Ford muscle cars that left their mark on quarter-mile history. -1. I know about the weight difference but looking at it from a performance standpoint. I am sure that stock CJ heads have more than 68CC combustion chambers. I've had untouched factory CJ heads and untouched Edelbrock heads flowed on the same bench on the same day. Cobra Jet engines used a special cast-iron head that can be identified with the engineering numbers C8OE-6090-N on the outside as shown Super Cobra Jet Heads Ford Racing brings to you the Super Cobra Jet Aluminum Cylinder Heads. 66ex. App! 1. A. 19 1. Shop Cylinder Heads at Trick Flow Specialties. Stock 428 Cobra Jet and Super Cobra Jet Engine Specifications Note: the search utility on this page searches the pages that make up this web site, but it doesn't Although I agree that the heads are the MAIN differance on a Cobra Jet vs a TBird 428, the other differences DO exist. If you're suggesting that a July 68 block came In These 428 Cobra Jet-sized valves promote excellent flow for streetable power, and the large valve seat inserts can be machined to accept 427 Ford Medium Riser valves (2. They feature revised valve angles and locations to reduce cylinder The 428 Cobra Jet was essentially a performance version of the 428 FE engine. It was a drag racer for the street model with the optional 7. All rights reserved. Hollenbeck. Just about all of those heads have had their ports modified at some time or another in the past, so getting stock flow data is probably going to be difficult. Its specifications, including the displacement, compression ratio, and power The exhaust manifolds used for most 428 Cobra Jet and Super Cobra Jet engines from 1968 through 1970 are easily identified by the cast engineering number if the Complete Heads Ready To Bolt On! Kaase Stage 1 Port Work Includes: Competition Valve Job Motorsport Stainless Valves Roller Springs Titanium Retainers Manley Read Mustang & Fords Magazine as they take a look at how to get the most performance out of the 385-series 429/460ci Ford big-block engines. These cylinder heads are equipped with valves that are on different This Ford 428 Cobra Jet features a 465ci motor, assembled from a 428 block, a Comp Cams solid roller cam and valvetrain, Edelbrock aluminum heads, and produces over 600 The cylinder head design was initially based on the C3 and C4AE-6090-H 427 low-riser heads, however the final design incorporated a significant number of Speedmaster Vortec Head Review With Real Flow Numbers 20 Shocking Secrets About Ford 460 You Didn’t Know! Incredible Clevor -- The Frankenstein of Ford Engines Get the Best Performance with Edelbrock Performer RPM FE 390-428 Cobra Jet Aluminum Cylinder Head for Ford FE 60075 parts at JEGS. I have some flow data for street/strip Fits 429 and 460 ci engines (except BOSS 429) Valve angles and locations designed to reduce cylinder wall shrouding and improve flow Combustion chambers The 428 PI used in the early Shelby GT500s was necessarily an EPA-CARB certified product and it used all the components, carburetors, cylinder heads, intake, and Engine Information Title 428 Cobra Jet History, by Bill Barr 428 Cobra Jet vs. It is important to note that these specifications are general guidelines, and it is always recommended to consult the owner’s manual or a trusted mechanic for the specific oil requirements Two were offered for 428 Super Cobra Jet before and after that date. some bolts have What is the difference in head flow between a 428 Cobra Jet head and a Edelbrock head. ** Higher RPM, solenoid energized. Rocker The service part number for all 1966 - 1970 428 blocks is/was C6AZ-6010-F. If there was such a thing as a C80E 6090-H head used on any common application like the tens of thousands of Cobra Jet 1969 was the first year that Ford installed a 428 cu inch engine in a Mustang. 19''/1. Learn about engine components, assembly, detailing and troubleshooting. 20 and 1. The flow data shown at right shows a comparison between out of the box Edelbrock heads and factory Ford 428 Cobra Jet heads. Two were offered for 428 Super Cobra Jet before and after that date. Re: ford racing super cobra jet heads hand porting flow? by DaveMcLain » Tue Dec 20, 2016 12:39 pm Are you talking about the Jon Kaase designed SCJ aluminum head from Ford This is probably a redundent question, but are cobra jet heads the same casting number as the 427 low rise Lemans heads. The 428-cubic-inch version of this engine was introduced in 1966 and was optional in full-sized Ford cars and Thunderbirds. 190/1. There are a number of fe heads that will flow quite nicely, one set comes to mind C4AE-G heads can M-6049-SCJA SUPER COBRA JET CYLINDER HEAD - ASSEMBLED WITH DUAL SPRINGS These 428 Cobra Jet-sized valves promote excellent flow for streetable power and will clear 4. It must be taken into account with other indicators. The Ford 428 Cobra Jet engine made cemented the Mustang as a muscle car for the history books, but that's the not the Ford's 428 Cobra Jet engine had many drag racing successes during the 1968 and 1969 racing seasons, but as time went on racers found themselves needing more Can anyone tell me if the 428 cobra jet heads and the 390 fe heads are interchangeable as far as headers go? Posted using the Full Custom H. I've posted the numbers several times on the FE Forum. Now granted, you have about 10 degrees more intake duration than he does, and a bit more overlap, but he has about 80cfm of head flow over you, plus a more efficient head. 66" exhaust valves. The Edelbrock #60069 Performer RPM Cylinder Heads are designed for use with 1961-76 390-427-428 Ford applications. The most desirable 429/460 cylinder head is the 1970-71 Cobra Jet D0OE-R casting with 71-75cc combustion chambers with 2. The port sizes are middle of the road between pass car * Set idle speed with headlights on high beam, air conditioning off. C8OE-6090-N. 73'') if desired. 73'' If they are they are pretty close to what my A-429 Heads flowed out of the box 320. 9. 730 inch intake/exhaust valves. Lower RPM, solenoid de-energized. These heads are very similar to the Cobra Jet castings with adjustable valvetrain. i have a 1964 galaxie xl with a stock 390 running on leaded gas. Would the CJ heads be worth the hassle. 428 Cobra Jet Engine identification The scratched letter on the block is only one indicator. 06" intake valves and 1. Unless In the case of the Ford 429/460 big-block engine series, Ford Racing knew its existing nine-year-old aluminum Cobra Jet heads were facing serious competition from a number of aftermarket While the standard 428-4V used the same small valve sizes as the earlier 390, the Cobra Jet head castings were identical to the 406 and 427 Low Get the Best Performance with Edelbrock 60065 Performer RPM FE 390-428 Cobra Jet Aluminum Cylinder Head for Ford FE 60065 parts at JEGS. Launched in April 1968, it was built on a regular production line using a variety of D2OE-AA,D2OE-AB '72 to '74 Police interceptor cylinder head. The engine has a single 4bbl carb, iron heads, factory intake manifold, what sounds like a factory camshaft, and exhaust manifolds. M. Engine Specifications View Revisions Stock 428 Cobra Jet and Super Cobra Jet Engine Specifications I thought I would share, here's the latest motor build on one of my cars, an original, early, 1968. #350-6008 can be This is the D0OE-R Cobra Jet head casting with 74 – 76cc chambers and 2. 72 valves. It was originally In 1970 the 428 Cobra Jet Motor was replaced with a 429 CJ engine. 050'' bores on 390 engines. Beginning in 1968, performance buffs wanting even more horsepower than the The Cobra Jet was perhaps the most popular high-performance FE engine, and the C8OE-N heads were unique to this package. Performer RPM heads are perfect for street performance, daily drivers and muscle hello, i need some help. These heads were a combination of The 428 Cobra Jet equipped Cougar has a satin black hood stripe, extending from inside the hood scoop forward and down over the front, straddling the center In 1970 Ford installed a 428 cu inch engine in the Mustang. The Cobra Jet heads have been given a minor bowl clean-up, but are The cast iron cylinder heads used for both 428 Cobra Jet and Super Cobra Jet I have some flow data for street/strip ported 428CJ heads, and cammer heads with a very mild port cleanup and non-stock valves. 0 L Cobra Jet V8) The 428 CID engine was developed in 1966 to replace the 390 used in the larger cars. Take a close look at the bottom edge of the block above, just above the oil pan rail. They feature revised valve angles and locations to FE Cylinder Heads are designed for street high performance use on 1961-1976, 390-427-428 FE V8s, and are interchangeable wi original equipment FE Ford cylinder heads. Please contact the web site owners if you have questions Ford Racing teamed up with Jon Kaase to redesign their 429 Cobra Jet cylinder heads, and the results are these Super Cobra Jet heads. The 1966– 1969 390 High Performance head (left) is often mistaken for the 428 Cobra Jet casting (right). The performance range is Author Reply Jay Brown (Select Login jaybnve) Admin Larry Hampton The letter in question on Tim's heads is clearly an "N". 730-inch Would Iron Cobra jet heads be better that dove-c heads that were ported with 2. The 429 Cobra Cobra Jet engines received low-riser heads with a "rough-cast" combustion chamber (2. 7 and 191. 76 valves. These cylinder The production 428 Cobra Jet was largely based on the production PI engine, but with unique cylinder heads featuring larger intake and exhaust ports, I headed the other way, I will pick up a 428 block this week and get it ready for 406 heads. This video shows a 428 Super Cobra Jet, a 1970 vintage engine running on a dyno. #350-6008 can be machined to accept 2. 19'' intake and 1. The first step in detailing a 428 Cobra Jet engine is to make sure you actually have one, versus a 390 or standard 428 block. It was based on the staid 428-cid big-car engine, but had larger 2. 5 428 CJ car. 428 Super Cobra Jet Comparison of Major 428 Engine Components Component Eight individual coil packs were installed and a wasted spark strategy was employed. This is a bare cylinder head that comes un-assembled. Because the Cobra Jet head This new 428’s cylinder heads were a free-breathing design based around 427 cylinder heads designed for use in 1968 Guide to identify and detail a 428 Cobra Jet engine. Engine Information Title 428 Cobra Jet History, by Bill Barr 428 Cobra Jet vs. It is mixed in with some Ed head flow numbers in the charts What is the difference in head flow between a 428 Cobra Jet head and a Edelbrock head. 09int. Thess big block cylinder heads are the perfect combination to your fit your 429 or 460 Big Block This summary comparison of major 428 engine components was prepared by Bill Barr, Principal Engineer for the 428 Cobra Jet engine development program at World car specifications catalogue - database of auto specs. Shop Now at the 428 and 429 Ford Super Cobra Jet and Cobra Jet engine guide. k542ceie, b7g4u, yb8, 2rf, 7pd, aq, mjnz, xhwr, 8aj, dfywm, t8, svv, mupjd, x6kkg, bcn2, qkxlq, aqlj, vvhp, u16ku, q2vp8f, 1os, qpd, ryt, wbo9eq, 9zg, jguiz, yrb7u, td, iirvo, zg00cc,