This is a set of GM Chevy LS aluminum cylinder heads that we just finished machining. Our customer requested we surface .015 off the surfaces of them in order to raise the compression. We first performed a vacuum test, pressure test and inspection to the cylinder heads. Once we made sure both cylinder heads were good we went ahead and mounted them on our AMC surfacing machine so we could surface the decks of both cylinder heads. These cylinder heads are similar to LS1, LS2, LS3, LSX, LQ9, and all of the LS based engines. If you need any engine rebuilding, cylinder head rebuilding, both stock and high performance machining and machine work, cylinder boring, cylinder honing, crankshaft and rotating assembly balancing, valve job and surfacing, or any machine work at all please don’t hesitate to give us a call. Jimmy Ewing Motor Mission Machine & Radiator 5435 Desert Point Dr. Las Vegas, Nv. 89118 Phone: (702) 649-2366 or (702) 649-0648 Fax: (702) 649-4133 www.MotorMission.com Facebook.com/MotorMission