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So the only difference between the HP and HP2 is the shift it was built on.
How do you tell if it was a 440-4 or a 440-6pac engine. Was there a stamp or number on the block.

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IIRC the 440 6 bbl had a different piston than the 440 magnum, pretty hard to tell if a block was a 6bbl if you couldn't see the pistons, or have the partial vin on the r/s of block and you knew for sure the vin was for a 6 bbl car......just my opinion,you don't have to agree or disagree......