alright..i dont see what everyone is bickering about.

LS1 will go 200k miles with routine maintenece, whoever says these motors are unreliable, show me an SR or RB that would keep up, and outlast an LS1..

as for the swap price, a full pullout, engine tranny harness ecu coilpacks and acc. is about 3500 dollars, around 4000 for a T56.

the aftermarket is very plentiful and minimal expenditures to have a reliable, 350-400whp car. and yes, they will still get 25-30mpg...which i have trouble seeing some SR cars do.

600whp from an LS1 though...your best bet is to run nitrous on it and go with a forged cheapo LQ bottom end possible work the heads some, maybe go with a T-rex or juggernaut cam, and toss a 150 shot on it. thats about the only way you will keep it streetable