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Old 04-10-2023, 06:47 PM   #1
samert111
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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.
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Old 04-11-2023, 07:57 AM   #2
Ironangel
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Re: Help me identify these heads

Pro-Comp Speedmaster 190's, 64cc chambers. They're a generic mass produced SBC aluminum head made in China...
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Old 04-11-2023, 02:29 PM   #3
samert111
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Re: Help me identify these heads

Quote:
Originally Posted by Ironangel View Post
Pro-Comp Speedmaster 190's, 64cc chambers. They're a generic mass produced SBC aluminum head made in China...
Thank you sir.

That's pretty much what I thought they were.
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