Good morning,

I am working on an LT1 swap, and since the engine came with the vehicle, I'm not sure exactly what model year it is or what car it came out of.
I'm fairly certain it is out of a Corvette from either 95 or 96 but I'm not 100% sure.

I'm having trouble with the accessory belt drive. The alternator pulley, P/S pulley, and A/C pulley line up with the crankshaft pulley, but the idler pulley is recessed about 1/2".
I'm assuming that I have the wrong pulley, maybe I have a Corvette idler pulley and everything else is for Camaro?

Is anyone aware of any different pulley offsets like how the Gen III LS series of engines has different pulley offsets for truck engines, F bodies, and Corvettes?
The only issue I have is with the idler pulley, everything else lines up.

Thanks in advance!

 

Is this just a pulley with a bearing? Some of these have a bushing inside the bearing bore and has a thick shoulder on the back side that spaces it out. Maybe not on this one but worth a look.