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My stock 1998 Mercrusier 502 EFI 415 hp was completely rebuilt last year using my stock heads, better quality valves, springs, upgraded pistons, rings with stock compression, etc with the goal of being as close to stock hp with increased reliability.
I currently have leakdown numbers of +/- 140 psi right now. What leakdown numbers should a factory fresh 502 415 hp have?
I'm not an engine guy so sorry if I have left out some pertinent facts and lingo.
Thanks
I currently have leakdown numbers of +/- 140 psi right now. What leakdown numbers should a factory fresh 502 415 hp have?
I'm not an engine guy so sorry if I have left out some pertinent facts and lingo.
Thanks