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Late 1990's GM 3.1/3.4L Intake gasket sealer to use
The China Walls for the intake manifold to block use sealer on these 3100/3400/3500/3900 60 degree V-6 engines. 92-2006 or so. What "silicone sealer" or other works the best/lasts longest, Please? Engine oil = Mobil synthetic 10w-30. No additives. Gaskets = Mahle metal support intake w/VC & GM oil pump drive seal. I've been retired and out of the loop. I've not kept up as I should. Any suggestions are welcome from the pros here. Thanks from an Old man now. Bill
Bill Graves ![]()
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| Engine | 3.4 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2004 Pontiac Grand Am GT 3.4L
| Engine | 3.4 L |
| Trans | 4-speed Automatic (Electronic) |

67 Replies Received
67 Replies Received