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Thread: Prc heads

  1. 04-19-2012, 02:26 AM #1
    440lsx
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    silver
    2000 ss camaro

    Prc heads

    How can you tell the Texas Speed stage 2.5 5.3 and their stage 2.5 ls6 heads apart.
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  2. 04-19-2012, 03:17 AM #2
    0rion
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    98 Formula
    06 duramax

    first clue will be the part numbers on the heads......ls6 heads are 243's and 5.3 heads are 852 or 706 I believe. Going off memory there on the 5.3 part numbers but I *think* that's right.
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  3. 04-19-2012, 03:24 AM #3
    440lsx
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    2000 ss camaro

    Where the part numbers usually are cast in the head, there is either a "PRC" engraved, or "stage 2.5" engraved. I wonder if there is any other quick way.
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  4. 04-19-2012, 01:29 PM #4
    440lsx
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    I think I found my answer. The exhaust ports are "D" shaped, and the serial numbers inside the heads are 12564243.
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  5. 04-20-2012, 05:29 PM #5
    cowstandmoto
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    Dark Blue Metallic
    2002 Trans Am WS6 M6

    I just looked at mine. I have the 5.3's. But because I am old and blind, I couldn't see what the numbers were.
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  6. 04-22-2012, 06:54 PM #6
    INMY01TA
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    Casting number and exhaist port.
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