Need to find casting # for Prc heads

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Dec 19, 2015 | 03:41 PM

383lt1ta

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Need to find casting # for Prc heads

There's a local race I want to run, that requires stock cast heads, but Prc filed the casting numbers off my heads and put there logo there. How do I prove they are gym cast heads, which they are?

Dec 19, 2015 | 05:06 PM

gagliano7

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From: Monroe,NY

Take the valve cover off and the # is inside in the middle. See in the pic 4243 is inside the head. That means it is a 243 head. On my 5.3 heads it has 1706 which are 706 heads.

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Dec 19, 2015 | 06:39 PM

383lt1ta

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My heads say D298 and F118, theyre LS6 from a GM crate engine

Dec 19, 2015 | 11:05 PM

BlackDuk98

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Flip the heads over and where the bottom of the runner is, there will be a stamped number. Mine are 799's. I can prolly find you a pic tomorrow if you still need it.