I just wanted to give a thumbs up to Tim at SDPC. He took the time to answer the questions I had and researched what he didn't know off the top of his head and called back promptly. I got the LS6 crate motor, headers,lid and LS7 clutch kit from them and the even beat the prices of everyone else I called. (gotta shop around) I am impressed by the staff at SDPC and would recommend them to anyone looking for parts for your car. I am a customer for life with the service I recieved. Everything arrived in great shape and in a timely manner given that it was Thanksgiving week when I ordered. Thanks Tim and everyone at SDPC!!!!