Well I completed the car in August of 2008 and the entire engine was built by Indy Cylinder Head and includes their Legend 1 alum. heads. It's a 432 c.i. 10.25:1 compression engine that produces 511 h.p. and 502 ft. lbs of torque on 92 octane pump gas. I told Kenny that I wanted a streetable engine that set you back in the seat when you matted it and he came thru and then some.