I've done a search but couldn't find a definite answer...
What size is the valve relief on a STOCK OEM 350 piston shown below, circa 1979?
I've been told -12cc but want to verify. Trying to figure the CR accurately.
TIA!

http://www.chevelles.com/showroom/BillsCamino/piston.JPG

I believe 12 is correct for that piston. there's another with a deeper dish, IIRC.

Tom

Thanks Tom! graemlins/thumbsup.gif