05-14-2017, 11:20 AM
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CC Member
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Join Date: Jul 2004
Location: Phoenix area,
az
Cobra Make, Engine: ERA FIA, 396 Windsor Stroker (Formerly: Unique 427 powered by a 351W with mysterious innards)
Posts: 264
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Quote:
Originally Posted by moore_rb
Hmmmmm.... Would I re-use that piston?
In a 200 HP, 4000 RPM truck engine: yeah, probably. A little work with the file to knock down all those rough edges (those are future pre-ignition/detonation risks) and I could live with one cylinder that is 1/4 point off in the compression ratio.
But in a 6000+ RPM hot rod engine? Hmmmmm... 
Considering that it looks like a generic Sealed Power piston, it's only gonna add about $30 more to the repair bill if they're cast pistons, and maybe $60-$75 more if they're forged... Cheap insurance. JMHO 
(Side-bet: I'll wager that those are cast pistons, and that what you got there is a generic parts-store rebuild long block- I can't imagine a performance engine builder using inverted dome pistons on a street/strip performance engine build- again, JMHO) |
I agree, but sometimes budget considerations override the wish list. At a minimum though, I'd knock down the ragged edges on the top of the piston like Rob said. I'd also magnaflux the head to ensure that there is no cracking on the valve stem boss. And, in keeping with what Rob said, I'd start a cookie jar fund for a replacement engine or a performance overhaul. (I'm starting my own cookie jar for that purpose.)
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