Ive got an Lm7 engine that needs new pistons, and I figured I'd just go with some flat tops. Now is there anything special I need to know before going about this? Are there any different dimensions between say the 4.8's which came with stock flat tops, and the 5.3's which are dished? I know this will through the compression up to 10.4:1 or around there and I"m good with that
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