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  1. #1
    6 PSI Boost
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    SVO's: 1986 work in progres

    aftermarket oil pan bolt holes

    I am replacing my oil pan and ordered a new pan that is build date proper ( pre feb 86) so it has a 4 piece gasket the gasket lines up with holes. there is one large bolt one small bolt on crank cover on both sides. But oil pan missing small bolt holes on both sides. Has anybody ran across this i am prepared to drill out oil pan, but I thought I would ask first

  2. #2
    OVER-BOOST!! GAboySVO's Avatar
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    Dec 2002
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    Acworth, GA
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    SVO's: 2 - 9Ls
    I ran into the same issue. You can drill the pan or get a few of these: https://www.atpturbo.com/mm5/merchan...&Store_Code=tp
    Mike S

    '86 SVO 9L Leather
    '86 SVO 9L Road Warrior
    '96 300ZXTT

  3. #3
    6 PSI Boost
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    SVO's: 1986 work in progres
    Thanks Mike that's what I thought but its good to see someone else ran across this

  4. #4
    OVER-BOOST!! GAboySVO's Avatar
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    SVO's: 2 - 9Ls
    The other thing you need to check is that the radius of the oil pan matches the block. Mine didn't with my replacement block. I ended up using ultra gray silicone and some 3mm spacers from McMaster Carr to seal up the bottom end.
    Mike S

    '86 SVO 9L Leather
    '86 SVO 9L Road Warrior
    '96 300ZXTT

  5. #5
    6 PSI Boost
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    SVO's: 1986 work in progres
    Did you ever try the one piece gasket vs the 4 piece mine is pre feb 86

  6. #6
    OVER-BOOST!! GAboySVO's Avatar
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    SVO's: 2 - 9Ls
    Yes, but the mis-matched radius caused it to pinch at 3 and 9 and leave a 1/16 gap at 12. If you still have the original block, then the 4 piece gasket may work. Just double check the spacing with out the gasket in place to see if the gasket will completely seal once you put it back together. Nothing worse than putting an engine back together, painting it all nice and pretty then discovering the oil leak once you put it in the car.

    I recommend performing a smoke test while still on the engine stand before you paint and put it back in the car.
    Mike S

    '86 SVO 9L Leather
    '86 SVO 9L Road Warrior
    '96 300ZXTT

  7. #7
    6 PSI Boost
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    SVO's: 1986 work in progres
    Thanks for all the great advice I will do. Hopefully can get it together for this years reunion

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