In the next year I want to perform a LS1 swap into my pickup and i have a couple questions concerning possible upgrading. Although i probably wont have the funds this year, what would i need to have it built with to withstand a sts turbo in the near future. My question is how difficult and how much would it cost to rebuild a stock low mileage LS1 into a stroked 402 forced induction capable engine? My ultimate goal is 400-450 rear wheel horsepower and i figured a 402 ls1 and a sts turbo at around 7 psi would do the job. Going along with that, is the LS1 motor the best way to go about this or is a 6.0 engine better? Any help and opinions good or bad would be greatly appreciated.