How do I identify a 428 Super Cobra Jet?
If you have access to the rear of the block, the most definitive method for verifying that you are looking at a reinforced 428 block (as used in most 428 PI, 428 CJ, and 428 SCJ applications) is to check the rear face of the block for a scratch mark manually installed at the foundry which roughly reads “C”; see the …
What’s the difference between a 428 Cobra Jet and a 428 Super Cobra Jet?
The CJ block differs from the plain 428 due to the additional webs cast into the main bearing saddles. The SCJ block is the same as a CJ. The differences for the SCJ were: 1) The beefer 427 “LeMans” connecting rods.
How do you tell the difference between a Ford 390 and 428?
As referenced earlier, the 390 was a 4.050 bore and a 3.781 crank. The 428 was a 4.130 bore and a 3.984 crank. Ford 428s had a different water jacket core which can often be identified by the “428” cast in the bottom of the inner water jacket right under the center freeze plug.
What years did Ford make the 428?
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….Testing 4-2-8… How Much Horsepower Does the Ford 428 Cobra Jet Really Make?
| RPM | Torque (lb-ft) | HP |
|---|---|---|
| 5,000 | 376.5 | 358.9 |
What is the true horsepower of a 428 Cobra Jet?
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’s numbers. The engine was rated by Ford at 335 horsepower, but the NHRA gave it a 390-horsepower rating.
How do you identify cylinder heads?
Cylinder heads may be identified by their casting number, located between #4 and #5 pushrods. General identification is as follows: 850-1100 heads have a heater tap at 90 degrees to the centerline of the engine. The space between the thermostat housing and the valve cover is small, at 1/16″.
How do you identify a 428 Ford Motor?
The 428 CJ and SCJ, for example, were originally identified by a small steel tag that was mounted to the top of the engine under the ignition coil mounting bracket. The bolt that secured the coil bracket also secured the tag.
How do I identify my Ford engine?
It is found underneath the bolts on the left or right side of the engine, near the front of the car. You can find the tag here on all six-cylinder engines made after 1964, and on some V8 engines. The tag is roughly three inches long, half an inch wide, and made of aluminum.
How much horsepower did the Boss 429 actually have?
375 HP
1969 Ford Boss 429 BOSS 429 The Boss 429 engine used a single Holley four-barrel carburetor rated at 735 CFM mounted on an aluminum intake manifold. All these cars had 4-Speed Manual Transmissions and the Boss was rated very conservatively at 375 HP while actual output was believed to be well over 500 horsepower.
How much is a 428 Cobra Jet engine worth?
In the realm of Mach 1 cars, the one that collectors want is fitted with the 428 cubic-inch Cobra Jet engine. This example looks nearly perfect and is on eBay with a Buy It Now price of $59,900.
How much horsepower does a 428 Police Interceptor have?
335 hp
In original factory trim the 428 Cobra Jet was capable of well over 400 hp at 5,600 rpm however Ford claimed just 335 hp to keep insurance companies happy – a number of other theories for this power understatement have been floated over the years, including the fact it allowed the car to qualify for lower power classes …
What makes a Ford engine a Cobra Jet?
The 1968 Cobra Jet was powered by a heavily modified version of Ford’s 428 big block engine. Using the 428 as its base, Ford engineers widened the valve heads and added a 427 intake manifold, ram air induction hood scoop, performance air cleaner and a number of other upgrades.
How do you identify a 428 CJ engine?
The 428 CJ and SCJ, for example, were originally identified by a small steel tag that was mounted to the top of the engine under the ignition coil mounting bracket. The bolt that secured the coil bracket also secured the tag.
What is a 428 Cobra Jet?
dual point (mechanical advance 1967 Shelby only) The 428 Cobra Jet, introduced April 1968, was a high torque, quiet, and inexpensively built engine. Not intended for true racing durability, it lacked the bottom end features of the side-oiler 427. The cross-bolted main bearing caps and oiling improvements were missing.
What is the difference between a 428 CJ and a SCJ?
The 428 CJ and SCJ blocks have extra main bearing webbing and thicker main caps than the normal 390 or 428. Connecting rods are similar to those used in the 390 GT, but CJ and Police Interceptor engines are fitted with 13/32″ bolts.
How many crankshafts does a Ford 428 have?
Unlike other FE family engines, the 428 is externally balanced. Due to different piston and connecting rod weights, there are actually four different 428 crankshafts. One used for normal 428, the 428 Police Interceptor, and the 428 CJ before 12/26/69. After that date Ford offered one crankshaft for 428 CJ.