SmoothSteve3 Posted January 24, 2004 Report Share Posted January 24, 2004 Hey everyone- Does anybody know if there were intake changes made on the 3.1 MPFI between 1990 and 1991? I've got a great deal on some gaskets that fit a 1991 3.1, but the guy keeps telling me that they will not fit a 1990 3.1. Is this true? Or bullshit...... Thanks! SmoothSteve Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted January 24, 2004 Report Share Posted January 24, 2004 Yeah, 90 used a paper plenum gasket and different plenum bolts. 91+ uses metal plenum gaskets with different plenum bolts. Go to Advance and ask for a set from a 90 and a 91 and compare them Quote Link to comment Share on other sites More sharing options...
god910 Posted January 24, 2004 Report Share Posted January 24, 2004 I used the TB gasket from my TGP for my 92 Cutlass, it fit just fine. (But, it's really cheap so, unless free, I wouldn't worry about them) Quote Link to comment Share on other sites More sharing options...
SmoothSteve3 Posted January 25, 2004 Author Report Share Posted January 25, 2004 hmmmm.......so i guess it wouldn't even be possible for me to fit a 91 gasket onto a 90 3.1? Or are they just different materials that would otherwise match up? SmoothSteve Quote Link to comment Share on other sites More sharing options...
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