bsymes34 Posted June 4, 2006 Report Share Posted June 4, 2006 Hey there I have an 89 pontiac bonneville with a 3.8 engine. What I want to to is replace the harmonic balancer with a 3.1 pontiac h.b. It is out of a 96 grand am and everything looks the same other than not having the rubber slip factor on the 3.1. Is this feasable or should I just get the 3.8 balancer. All help appreciated Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted June 4, 2006 Report Share Posted June 4, 2006 Id stick with the 3.8 balancer. The 3.1 was not designed for the 3.8, so it doesnt dampen the virbrations of it. Harmonic balancer dampens the virbrations from the crank shaft, one you change that it no longer dampens/ or not as well. When you have all the vibrations from the crank shaft going to the rods, bearings, your just shortening the life. Quote Link to comment Share on other sites More sharing options...
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