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Thread: LT1 Opti drive seal

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  1. #1
    Fuel Injected!
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    10-4, I'll limit it to 60 seconds
    John - '79 Malibu Wagon - LT1 - 4L60E

  2. #2
    Fuel Injected!
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    Only one of the water pump mounting holes in the block passes in to the water jacket. It's the lower one on the drivers side. I'm putting PTFE sealer on the bolt threads for that hole. The way I see it, the other bolt holes don't go into the water jacket so they don't need sealer. I'll use a skim coat of RTV on the flange gaskets.

    Sound about right?
    John - '79 Malibu Wagon - LT1 - 4L60E

  3. #3
    Fuel Injected!
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    Quote Originally Posted by JD1964 View Post
    Only one of the water pump mounting holes in the block passes in to the water jacket. It's the lower one on the drivers side. I'm putting PTFE sealer on the bolt threads for that hole. The way I see it, the other bolt holes don't go into the water jacket so they don't need sealer. I'll use a skim coat of RTV on the flange gaskets.

    Sound about right?
    Yeppers, sounds correct.
    1990 Corvette (Manual)
    1994 Corvette (Automatic)
    1995 Corvette (Manual)

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