Thread: mangled piston on a 454

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Hi, was boating the other day and the engine starting huffing smoke out of the one valve cover breather (engined stalled and I had to get towed). Figured it was a good time to take apart the motor and install my new 781 heads and weiand 177 blower. Anyhow, took the old heads off expecting to find a bad exhaust valve or something, and this is what I found (see pic).

Anyhow, question is, (see that I want to get back on the water ASAP), can I just put a new piston on the rod and reassemble (quick fix) for now, or won't that work? Should I take the crank out and have it checked/ fitted to new rods and pistons etc?

Just looking for quick fix now, and will probably stroke it to a 496 with forged parts this winter....

Thanks.