This is a Chevy GM LS LQ9 6.0 liter cast iron V8 engine cylinder block. We did a bore & hone to all 8 cylinders and finished them for a new set of Wiseco forged stroker pistons. We bored the cylinders with our Rottler boring bar before we finish honed the cylinders with our Sunnen CK10 honing machine. For all of your high performance machining & machine shop needs we are your #1 Las Vegas Machine Shop. 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