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  • Engine: Heads Question

    Could someone tell me the compression ratio of V-8 head # 1557579? If used with a thin gasket.

    Thanks,
    Jim

    Thanks for our comments.
    Last edited by showbizkid; 03-16-2012, 08:19 AM. Reason: merged duplicate posts
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  • #2
    The thin shim beaded Head Gaskets 1545072 are correct/stock OEM for rated H.P. and Compression on 1957 to 1964 Stude. V-8's.

    With those Heads 8.5 to 1 Std. 259 or Dished 289 Pistons, with flat Top Avanti Pistons about 10.25 to 1.

    Probably ABOUT 9 to 9.5 if you order the shallow dish 289 Avanti low compression Pistons.

    Because of Head or Block machining, porting, different Valves, boring etc. and possibly aftermarket Pistons, it is not an exact science without CCing the combustion chambers, heads and block.
    Last edited by StudeRich; 03-15-2012, 08:49 PM.
    StudeRich
    Second Generation Stude Driver,
    Proud '54 Starliner Owner

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