The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Help Me Pick Some Heads For Christmas Present

Nuckingfuts · 03-04-2018, 12:18 AM

Can anyone shed some light on if this looks like a stock piston for this gen I and 350?

This morning I was able to verify bore roundness/taper and though Im approaching 75% of allowable limits, I'm still within allowable tolerance. With that said, it doesn't really matter what the previous owner did. I know now that this block is down to its last ~50k miles and will run it as is (no rebuild) until it gives.

With a piston deck height of 0.032" I picked up a felpro 0.015" steel shim to drop the head into a respectable quench range. Should have the decks prep'd and heads on in the next couple days. I'll post pics as progress develops.

03-04-2018, 12:18 AM	#56
Nuckingfuts Registered User Join Date: Apr 2017 Location: CA, USA Posts: 117	Re: Help Me Pick Some Heads For Christmas Present Can anyone shed some light on if this looks like a stock piston for this gen I and 350? This morning I was able to verify bore roundness/taper and though Im approaching 75% of allowable limits, I'm still within allowable tolerance. With that said, it doesn't really matter what the previous owner did. I know now that this block is down to its last ~50k miles and will run it as is (no rebuild) until it gives. With a piston deck height of 0.032" I picked up a felpro 0.015" steel shim to drop the head into a respectable quench range. Should have the decks prep'd and heads on in the next couple days. I'll post pics as progress develops.