I just traded my 96 blazer for a 94 Formula with a LT1 and a 6 speed. It has 164xxx on it and already has a K&N cold air intake, and 160 thermostat. Also has a skip shift bypass and a man override for the elec. fan. Do you guys know where I can get a good rebuild kit with forged pistons. I want to at a later date go forced induction. How much hp will the stock 6 speed take?

 

Let's move this to "LT1 Based Engine Tech".

People have used the stock T56 up to the 800HP level. You may have problems with the synchros/blocker rings and shifter forks, but that's an easy upgrade.