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new headgasket?

Discussion in 'Engine Building' started by Del Slw, Apr 12, 2004.

  1. Del Slw

    Del Slw Member

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    my friend finished building his motor.
    b18a1 block bored to 84mm.

    when he starts it up, its making a rather loud knocking/slapping noise.

    he is using a stock LS head gasket. could that be the problem? could the pistons be hitting the head gasket since it is a different bore?

    it's not the valves. and there is nothing loose. it kinda sounds like the timing belt smackin the cover, but its not.

    any ideas?

    -Robbie
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    hes using an 81mm head gasket on an 84mm engine??????

    smack him :slap:

    then tell him to get the right sized gasket
     
  3. Del Slw

    Del Slw Member

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    so that is most likely what is causing the noise?
     
  4. D See 2

    D See 2 Senior Member

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    i would definitely think so...
     
  5. Del Slw

    Del Slw Member

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    so can he use a b20 headgasket?

    he's running a lsvtec btw.
     
  6. eastonball

    eastonball Member

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    I'm sorry, but thats just funny. Thats like Trying to fit a bowling ball into a hole the size of a baseball, and wondering why it doesn't fit... Sorry, but it's a little too big.

    Didn't he wonder... whats going to happen to the over hanging Head gasket material?
     
  7. NotUrAverage_Si

    NotUrAverage_Si Senior Member

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    oh dear god...:eek:

    please tell your friend to throw himself on a rusty chainsaw blade.
     
  8. MikeBergy

    MikeBergy Blah blah blah....

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    you can order cometic headgaskets for the ls vtec application, oversized bored too I believe. If you go with a stock ls Head gasket, get it bored to match the cylinder bore. What a goofus. Next I suppose you'll be telling us he used a b16 timing belt. :D :p
     
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