Quote:
Originally Posted by paul2748
The 54 car (not Tbird) steady rest is different than the 55/56 although they look similar.
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TRUE. The '54 239 CAR engine (Detroit) had slightly smaller front engine mount, timing cover, water pump and intake manifold as well as funky heads with intake ports closer together than later Y-Blocks, but just to look at them separately, you cant tell them apart unless you have casting numbers memorized.
I should have said '54 Car engine front mount is not INTERCHANGEABLE with '55 and '56 cars.
I believe the late '54 239 and all '55 239 pickup truck engine parts (Cleveland) mentioned in the first sentence ARE interchangable with the '55/56 272/292 Y-blocks but not 100% sure.