[HWYSTR455]

Trying to recall what the usual items to consider when using a 350 block, will take a shot at it strictly from memory for amusement:

* Large valve heads may have issues with the smaller bore, chamfer needs to be scrutinized

* Piston selection may be minimal

* 350P blocks have thick bore walls (can't recall specifics)

* Care needs to be taken on block inspection/prep, cap fitment, line bores, deck, etc (core shift)

My first engine build was a 350P, and went big on the bore because of piston availability. I think it was like +80 or maybe even +100, would have to dig thru notes. I abused that engine, RPM-wise especially, rod let go fairly early on in it's life. OE prepped rods with good bolts. My intro into Pontiac engines!


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