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The stock L67 supercharger gasket is made from compressed paper and needs to be replaced with each install unless you block off the coolant passage in the intake manifold like we do with our machined intake. OEM L67 gaskets require coolant O-rings to be ordered separately. This is the correct supercharger gasket for 3.8L 3800 Series II 1996 to 2003 GM superchargers. For Example 1996+ Buick Regal, Buick Park Avenue Ultra, 1996+ Buick Riviera, 1997-2003 Pontiac Grand Prix, 1996-2003 Pontiac Bonneville, 2004-05 Chevy Impala SS and 2004-05 Chevy Monte Carlo SS.
Supercharger bolts: 17ft/lbs
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