jolly4numb Posted January 20, 2006 Report Share Posted January 20, 2006 ok so im putting a 3400 top end on a 3100 bottom end, and im wondering what head gasket i would use... pic would be nice but n e other way of lettin me know would be great thanks by the way im a newb on this site, but not new to working on cars, avid member of v6z24.com and just bought a 95 grand prix... yocum Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted January 20, 2006 Report Share Posted January 20, 2006 You would use a 3100 head gasket, since thats what pistons are in the engine. Quote Link to comment Share on other sites More sharing options...
1990lumina Posted January 20, 2006 Report Share Posted January 20, 2006 PM GP1138 (John) or wait for him to chime in here...he's done this swap before Quote Link to comment Share on other sites More sharing options...
dbtk2 Posted January 20, 2006 Report Share Posted January 20, 2006 You would use a 3100 head gasket, since thats what pistons are in the engine. Or use the iron head 2.8 head gaskets to bump your compression up...thats what I would do. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted January 20, 2006 Report Share Posted January 20, 2006 its not a overall hard swap, you say that you have a 95' prix. when was the car built (on drivers door st production 1995 cars, pull off one of the rockers and studs if there is a little notch under the rocker ticker) the reason i say that is about the rockers. since its a 95' it will have the stamped rockers which will not clear the 3400 LIM, now what i saw they used the roller rocker style heads on latehen you can use the newer style roller rockers on your existing heads. but if its a early 1995 car chances are that it has the older heads which simply do not have that notch. Quote Link to comment Share on other sites More sharing options...
THe_DeTAiL3R Posted January 20, 2006 Report Share Posted January 20, 2006 I think he might be changing his heads to ones from 3400, since he asked about the head gaskets.. Quote Link to comment Share on other sites More sharing options...
jolly4numb Posted January 20, 2006 Author Report Share Posted January 20, 2006 I think he might be changing his heads to ones from 3400, since he asked about the head gaskets.. yes i am... i just needed to know if i should use the head gasket from the 3400 or the 3100 now i know... thanks alot guys should be done tomorrow, ill update yocum Quote Link to comment Share on other sites More sharing options...
GP1138 Posted January 20, 2006 Report Share Posted January 20, 2006 FWIW: I used a whole re-gasket kit for a 3400, and it didn't make any difference, the car runs great, no other problems. Quote Link to comment Share on other sites More sharing options...
jolly4numb Posted January 20, 2006 Author Report Share Posted January 20, 2006 ok, well i just called my dad and told him to pick up the the 3400 re-gasket kit he said he'll pick it up today... thanks alot yocum Quote Link to comment Share on other sites More sharing options...
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