[pharmd]

Originally Posted by 68GMCCustom

well my truck is quite a bit lighter then our TBSS...not sure I would change the heads on it either....just throw a intercooled maggie on it, replace trans with a beefier unit (6L80e would be nice) and add trans cooling, and open up the exhaust system. And I can see where a normally aspirated 6.0L on a heavy TBSS might do better with the smaller ports and then it would the L92's larger ports.

And as far as my cam choice goes.....for sure you can't just throw just any cam in a L92/LS3 headed motor. IMHO Comp rates their cams (and springs) strange somtimes anyway. They show this cam as a catherdral port cam. Truth is, I planned to by MTI Racings Stage I cam...but found I could get 20% off the Comp cam LSr version when I was ready to buy making it like $80 cheaper, for a cam with the same duration and lift specs. MTI Racing Stage 1 Camshaft Specs are: 223/231 .610/.617 (they won't give more info) and its in their LSX line and specifically engineered for the L99 Camaro. Truth is my cam guy that spec'd it for me wanted me to go a bit bigger and I'm sure I will...but you have to start out somewhere right? And since the goal has always been 11's (but secretly hoping for better w/o caging it yet) and still drive it home....I'm sure I'll be making other changes to get there and run consistently.

6L80 woulda been perfect had they put it in the TBSS...I used to have Jeep SRT8, with the 5 sp auto, and even the extra gear there was VERY noticable. There is a guy on TBSSowners working on a retro fit kit for the 6L80...to me, whether it be a 60's truck or a newish tbss, that is a great tranny to go with.