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samert111 · 04-10-2023, 06:47 PM

I'm trying to find out what aluminum cylinder heads I have on my GM 350 crate engine. No casting markings or logo on the ends of the heads.
I did find the following part number on the exhaust manifold mounting surface between the two center ports.

XPC 3002-2018-05-22-0570

The only thing I've been able to find is is a part number PC-3002 for Speedmaster heads.

04-10-2023, 06:47 PM	#1
samert111 Registered User Join Date: Jul 2022 Location: Rockford, Mi Posts: 69	Help me identify these heads I'm trying to find out what aluminum cylinder heads I have on my GM 350 crate engine. No casting markings or logo on the ends of the heads. I did find the following part number on the exhaust manifold mounting surface between the two center ports. XPC 3002-2018-05-22-0570 The only thing I've been able to find is is a part number PC-3002 for Speedmaster heads.