headgasket question

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  • Rootie524
    • Feb 2010
    • 543
    #1

    headgasket question

    i have no idea why i just realized this now but i have my 3400 up and running in the car and its running great.

    but it's bored .30 over and i used stock headgaskets. when i put it together it didnt look like it overlapped the cylinder at all but im just wondering if this is a problem.
    2002 Chevy Malibu 3400sfi - Project Sleeper - Good night

    Boost - Coming soon to a malibu near you.
    Tags: None
    • mfuller
      Mr. Common Sense
      • Nov 2003
      • 374
      #2
      Originally posted by Rootie524 View Post
      i have no idea why i just realized this now but i have my 3400 up and running in the car and its running great.

      but it's bored .30 over and i used stock headgaskets. when i put it together it didnt look like it overlapped the cylinder at all but im just wondering if this is a problem.
      Stock GM headgaskets are plenty big for a .030" overbore. I use GM gaskets on my motor which is .040" over.
      Matt
      2000 Oldsmobile Alero GLS sedan
      3400/3500 hybrid, Diamond Racing forged pistons, Scat I-beams, TCE DRTC, ported heads, WOT Race cam, PAC 1518s, Manley valves, F40 6-speed with Quaife LSD

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