I'm helping a friend retrofit a CTS-V T56 behind a LS1 motor in a '70s chevy pickup. It looks like the CTS-V trans has about 1/2" top 3/4" shorter input shaft than a LS1. Did they use an extended pilot bushing on the LS6 motor?, and would anyone happen to have the p/n for it if so?

TIA
mike

 

Anyone ever look at an LS6 pilot? I mocked up everything tonight and the input shaft is exactly 1/2" shorter on the CTS-V. Can the LS1 use a McLeod extended pilot bushing?

 

Check this thread out that I replied in a little while back:

https://ls1tech.com/forums/showthrea...825&highlight=

I bet the cts-v engine uses this bearing: http://i90.photobucket.com/albums/k2...8/DSCI0034.jpg

It seats into the area of the crankshaft normally used to locate a torque converter in an auto application. That would make it necessary for the input to be slightly shorter than a normal LS1 t56.