Looking to buy/build 500-600 fwhp 360

Lurch59 said

Well, I bought the rotating assembly so I don't know if I can get zero deck. I'm getting the compression ratio off the Hughes engine web site. I might port the heads and run a bigger roller cam. I don't plan on running nitrous very much, and it's a 4 speed so I can lower the static compression ratio a bit and put in a healthy cam to build pressure. At least I think I can do that.

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Attaining 'true' zero deck on the pistons would require measuring what the current block deck height is, the older LA engines were pretty bad about the decks being taller than spec but a Magnum block is going to be a lot closer to what it's supposed to be. The kit you got has a note at the bottom of the page, "calculated using a zero-deck engine with .030" overbore and .040"-thick head gaskets". When you go and install the pistons they may end up being .005-.010" below deck or more which will affect (lower) your actual static compression measurably.