ls1 400whp with bolt on's ?
http://www.hawksthirdgenparts.com/pe...tips400hp.aspx
Note the included 1.85-Ratio Rocker Arms w/ Springs & Retainers (51185)!

I will say this much though, 01-02 LS1 T-56 10bolt with full bolt ons including EWP,Fast 92/92,1 7/8th headers and a spot on tune would be damn close.





