if you would read then you would find out that it is a type r bottom end and tranny. The only reason for putting the gsr head on was to raise the compression. I really dont give a s.hit what your "boy" has. I have only seen maybe 3 people on here that even have a k swap, but the price is 7k OBO (that means Or Best Offer). btw DIAFOriginally Posted by DC2®