Mach 5 Posted January 14, 2010 Report Share Posted January 14, 2010 Well Im doing some more research for the new turbo engine setup and found a nice set of cometic head gaskets to use. Now the problem is that the engine is an 89 and the gaskets are listed for a 96- 05. What are the differences in these gaskets and can they be used on an 89 3.1L LHO-LG5 motor? I was thinking of using these because of the boost issue and I had a nice set of felpros blow out on me. If not these what else could I use in place? Thanks -Jarek Quote Link to comment Share on other sites More sharing options...
Brian P Posted January 15, 2010 Report Share Posted January 15, 2010 96-05? That's an odd range if they're referring to a 3.1 or 3100. Are you sure that's not for a 3400? Also what's the installed thickness of them? Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted January 15, 2010 Report Share Posted January 15, 2010 Something isnt right in that listing. Didnt 60* used to sell MLS headgaskets? Quote Link to comment Share on other sites More sharing options...
WrathOfSocrus Posted January 15, 2010 Report Share Posted January 15, 2010 http://wot-tech.com/shop/all/2-8/3-1/3100-mls-head-gaskets/prod_246.html Be certain to use the 3.622" bore gasket with a 2.8, 3.1 or 3100 block. There are different listings under 3400 and 3500 as well; the difference being bore diameter. Many people have used Gen 1 (iron head) 60 degree gaskets and pistons in Gen 3 (3100, 3400) blocks without any issues. Quote Link to comment Share on other sites More sharing options...
Mach 5 Posted January 15, 2010 Author Report Share Posted January 15, 2010 off Cometics website: 1996-05 3.1L 60 Degree V6 LHS 90 MLS/C.O.T. - .051" C5220-051 1 $97.65 1996-05 3.1L 60 Degree V6 RHS 90 MLS/C.O.T. - .051" C5221-051 1 $97.6 I just looked on the 60degreev6 website and found that they sell them in all different sizes for $150. For what quench I need I have absolutely no clue. -WrathOfSocrus- Yeah I thinking that should work because some people have inter-changed the top end. I guess the block, bolt holes, and coolant locations are all the same Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted January 15, 2010 Report Share Posted January 15, 2010 Did you run the engine lean or something? You really shouldn't have an issue with Fel-Pro gaskets and a stock turbo(or even bigger) unless you get some detonation or there's an issue with the sealing surfaces. Got any pictures of those blown gaskets? Quote Link to comment Share on other sites More sharing options...
Mach 5 Posted January 15, 2010 Author Report Share Posted January 15, 2010 I haven't disassembled the engine as of yet but I will put up a build post. Im basically redoing the entire car. It was misfiring a little bit do to a bad coil and the gapping of the plugs. That could have killed it Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted January 16, 2010 Report Share Posted January 16, 2010 I'll vouch for Cometic making a good product. I've run them in almost every motor I've rebuilt with no problems. Quote Link to comment Share on other sites More sharing options...
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