If I was putting a set of power pullys on a basically stock LS1 what ones do I need? My car has a Cat back system and SLP wisper lid. After time I do plan for rear end gears, throttle body, and headers with X-pipe. I see like 4 different kits out there with different combinations of pullies. What is the best brand?

 

as far as i know there is only one type available for the LS1...

made by ASP, and it's a crank pulley w/ built in harmonic balancer (i think that's what it is). you can buy an alternator pulley to go with it to prevent loss of charge.

i have the ASP (pics in my sig) but i don't have the alt pulley and have NO problems what so ever.

what other kits are you looking at? am i missing something?

 

Get the ASP crank pulley, just the one. Pulleys made by other companies could mess up your engine.