bringit1981 Posted July 25, 2011 Report Share Posted July 25, 2011 is there a diffrence between headgaskets and are the uim the same? thanks01 malibu 3100 Quote Link to comment Share on other sites More sharing options...
jman093 Posted July 26, 2011 Report Share Posted July 26, 2011 3100's and 3400's have different head gaskets, but I think that's because of the 3400's bigger bore and a 3100 head gasket should still be used with a 3400 head on a 3100. Manifolds and manifold gaskets are the same for 2000 and up 3100/3400 except I do think the manifolds on a U-van are a crappier design. Quote Link to comment Share on other sites More sharing options...
bringit1981 Posted July 26, 2011 Author Report Share Posted July 26, 2011 thanks i have a 01 malibu 3100 3 rocker arms have pulled out i have heads for a 01 impala 3400 and the 3400 ex manifolds and lim Quote Link to comment Share on other sites More sharing options...
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