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LS short box · 03-03-2020, 06:10 PM

I did a LS/T56 swap in my 68 C10 and had a similar problem. I ended adding a high hump trans cover. Then because I had to run 3.5" drive shaft due to length and HP level.
I would do what ever it takes to lower your engine mounts so the oil pan just clears the engine cross member.
I ended up at 3.8-4 degrees engine angle with a 6" rear drop. Zero vibrations.

03-03-2020, 06:10 PM	#2
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,939	Re: Correct Motor Mount Thickness? I did a LS/T56 swap in my 68 C10 and had a similar problem. I ended adding a high hump trans cover. Then because I had to run 3.5" drive shaft due to length and HP level. I would do what ever it takes to lower your engine mounts so the oil pan just clears the engine cross member. I ended up at 3.8-4 degrees engine angle with a 6" rear drop. Zero vibrations.