How do you identify a Cobra 428 jet head?

The casting number, C8OE-6090-N, can be found in the recessed area between the middle two spark plugs as shown in the picture below. If the casting number is questionable, check the number of bolt holes on the exhaust manifold face for additional identification assistance (428 CJ heads should have sixteen bolt holes).

Is the 428 engine a CJ or SCJ?

All 428 CJ engines were originally equipped with hydraulic camshafts. If all three screw-in or press-on plugs are not there, it is not a CJ or SCJ block. Air-conditioning was not available for vehicles with a 428 engine because the oil-cooler used up the space in front of the radiator.

Is there such thing as a 428 Cobra Jet cylinder block?

First and foremost: there is no such thing as a cylinder block that was unique to the 428 Cobra Jet and Super Cobra Jet engines! By the time these engines were produced, Ford was using the same reinforced block for all 428 applications. It’s more appropriate to call the block a reinforced 428 block than a “428 Cobra Jet” block.

How big is the exhaust valve on a 428?

Measure the intake valve diameter. The 428 should be between 2.022 and 2.037 inches, with the CJ engine measuring 2.080 to 2.097 inches. The exhaust valve diameter should be 1.551 to 1.566 inches, with the CJ engine measuring between 1.652 and 1.660 inches. The valve stem diameter is 0.371 inches and the valve lifters are hydraulic.

What are the dimensions of a Ford 428 engine?

The 428 should be between 2.022 and 2.037 inches, with the CJ engine measuring 2.080 to 2.097 inches. The exhaust valve diameter should be 1.551 to 1.566 inches, with the CJ engine measuring between 1.652 and 1.660 inches. The valve stem diameter is 0.371 inches and the valve lifters are hydraulic.

What kind of car is a 428 CJ?

I thought I would share, here’s the latest motor build on one of my cars, an original, early, 1968.5 428 CJ car. It was originally ordered from a dealership in NJ as a race car, the quickest combination at the time, a zero option, radio delete, 4.30 rear 4 speed car.

Where did the Cobra Jet 428 come from?

It was originally ordered from a dealership in NJ as a race car, the quickest combination at the time, a zero option, radio delete, 4.30 rear 4 speed car. She was raced from 1968 to 1974, then retired and put away for limited street duty.

How do you identify a Cobra 428 jet head?