[Thumpin455_GTO]

Considering the LeMans was pretty much unmolested it should have the right pulleys. Im trying to figure out how to make the short early cover and accessories fit a 400 or 455. The balancers are different, so getting it all to line up would be a problem. Someone probably has a solution to it, just havent looked.

Whatever rear the LeMans has under it is what the GTO will get. Its a ways from needing it, so I havent checked to see what gears it has. I have a choice of transmissions, Th350, Th400, and 2004R. It depends on the gears in the rear end and what trans I feel like rebuilding. I would like to do the 2004R, OD is nice and the lock up converter would get better mileage, but if the rear is a 2.56 then it doesnt need the OD, cruising around here with the 55 speed limit would be problematic since it could be lower than idle speed.

[64woodwheel]

Originally Posted by Thumpin455_GTO

Im trying to figure out how to make the short early cover and accessories fit a 400 or 455. The balancers are different, so getting it all to line up would be a problem. Someone probably has a solution to it, just havent looked.

You can run the entire 65 accessory drive system (timing cover, water pump, PS pump, and pulleys) on a 400 or 455. That's what I did with my 64 ('64 setup) . To make it easy, everything needs to be from the same year.