LT1 TRANNY Q's - Third Generation F-Body Message Boards

baerZ28 · 11-24-2005, 09:13 PM

Alright I have a 1985 Iroc and I'm putting an LT1 In place of the TPI. I have a T5 MB1 out of a V-6 camaro and I was going to rebuild it to a world class, all new main and counter shafts, Tapered bearings and all, but what input shaft will I need and where do I get it. I know I will probably blow this tranny but I want to defy the odds. I have read the the shaft for the World Class is longer than the non WC but is it long enough for the LT1?

TexasLT1 · 11-24-2005, 09:32 PM

same input shaft you need for any other SBC V8, nothing is different. I ran a T-5 behind my LT1 for almost 5 years. For the money your going to spend to rebuild it with all new parts you'd be well on the way to a T-56 or could have gotten a used V-8 T-5 and had it rebuilt.

Coach Hawk · 11-26-2005, 11:38 PM

Even a world class T5 may not last behind an LT1. I'd look into the Tremec TKO 5 speed or the T56 6 speed. Neither one is going to be cheap, but neither is upgrading the T5 to those specs.