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I have a 350 I'm rebuilding block casting is 3970010. I pulled the heads hoping to see if it's been bored over or not but idk much about this. It's my first rebuild. Thanks !
Looks like a stock GM piston to me. Stock 350 is 4.00 inches even. You'll have to mic it to find out if its been bored over. Looks like a "67"-to "72" 350 engine to me.
August 26th, 2019, 6:50 PM
Help. Are these pistons stock ?
