im new to this, and im about to go ls1 in my car, new to the scene...

trying to see where my moneys best spent, if i stay ls1/ls6 whats the i heard the ls6 241 casting is best? what could i expect with a t rex or similar cam?

next, whats the l76 l92 stuff cost? and i see you can get nearly 550 rwhp with just those and a decent cam? what modification to exterrior of the motor is needed? i.e exhaust, fuel rails, coils wire harness ect

 

From what i understand if you were to stay with the Ls1/Ls6 block you will not be able to use the L92 heads because the valves will not clear the cylinder bore. the Ls1/Ls6 block has a 3.9" bore i think and those heads require at least a 4in bore