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Originally posted by Putt That's the difference-most truck FE engines have the piston located .112" down the bore. Earlier car 390's were from .005" to .020" down the bore.
That sounds a little high at .112" ... I used a '74 truck 360 block for my 390 build and the pistons were about .020-.030" below the deck when I took it apart... the motor was OEM, never rebuilt.
Originally posted by Putt That's the difference-most truck FE engines have the piston located .112" down the bore. Earlier car 390's were from .005" to .020" down the bore.
An afterthought... that might be true for the FT heavy-duty truck motors, they have some very low compression like 7.x:1