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Thread: Boost ?????

  1. #1
    flattie
    How much overdrive can you safely use with gaskets before having to O ring the block? Im at 9.4 over right now. The engine is 8 to 1 static comp. all good parts with aluminum heads

  2. #2
    Blown 472
    9.4 psi?? from what I was told from kuhls that is ok. I think once you get about 12 or 13 you start lifting the heads and get into the fuzzy area. I ran 11 to 12 psi on my 440 and never hurt the head gasket.

  3. #3
    Senior Member
    Join Date
    May 2009
    Posts
    1,143
    Im At 10# With No Problem Yet.

  4. #4
    VD CRUISER
    I have been running 10.5 psi for 3 seasons now with felpro 1017-1 gaskets, no grooves. I bumped it up to 12 psi at the end of this season and have not seen a problem. Static compression is 8.3 to 1.

  5. #5
    Infomaniac
    The Cometic gaskets will not blow.
    Get a set and never worry about it. Reusable also.
    I can fix you up when the time is right.

  6. #6
    flattie
    Hey Infomaniac how much for a set of those gaskets for a 454 chevrolet block with aluminum heads. Also how much overdrive can I get away with

  7. #7
    Infomaniac
    You can boost it as much as you want.
    I will PM you for prices.

  8. #8
    flattie
    How much overdrive before you run racefuel only and what octane

  9. #9
    Infomaniac
    Check your PM for pricing.
    That is internet advice suicide giving boost overdrive octane advice. There are too many variables. :idea:
    Check the blower mfg web sites for their charts.
    Kuhl TBS BDS etc.

  10. #10
    Blown 472
    Hey info, can you get them for non chevy dealios? and if so could you pm me the prices for mopar stuff? Thanks.

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