GM Guy
Manual Trans. 2WD Enthusiast
It's all personal preference.......Just saying "I heard" that the poly for motor mounts, didn't have the same dampning characteristics as the OEM "rubber".....They're to hard/stiff.
Hey your rig, use what you like.....and I agree Barry seen a few 6.5's to say the least.
that he has!
had a chat with my old man, and he offered up some examples of some stuff that is solidly mounted, and hasnt affected anything yet, one of which is our 79 chevy with the Isuzu I6 ( The first chevy duramax! lol) that the previous owner swapped in. it is sitting on pieces of pipe, and no frame cracks at all.
I will probably go with poly engine mounts and get a set of rebuilt boschs from BK, and get a Fluidampr and call it good.Its just money, cant take it with you, and a sweet running 6.5L is more exciting than watching your money grow with shitty interest rates!