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Re: Late 1990's GM 3.1/3.4L Intake gasket sealer to use
Posted to Technical Discussion Forum on 6/12/2019 3 Replies

Best sealant I ever found was Dirko. Came in a toothpaste style tube, was grey and stank like hell. It could seal up small to medium head gasket leaks externally at times. Very hard to find now. Was OEM sealant for SAAB and BMW some 30 years ago.

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