its alot of money your looking at spending about as much as a gsr full swap. My last one put down 176/142. Basic lsvtec but with itr pistons. and itr intake. My new one iam going with differnt pistons and aftermarket rods. Should be around 220 250whp. I think thats a high est. though. What ever the choice it cost alot of money to do it all right.