Here are some before & after pics of a 1955 Avanti 259 cubic inch Studebaker engine block. The block came in for a hot tank cleaning & the cylinders to be bored & honed for new oversize pistons. After a day & a half in the hot tank it was clear that the block needed to be baked in our oven as it had some gray gooey stuff built up in the valley around the lifter bores as well as in the coolant jackets that wasn’t coming off. After a quick call with our customer it was agreed upon to thermal clean the block & then shotblast it. The first order of operations was to align hone the housing bore, or main line, where the main bearings install. We then mounted the block on our Rottler EM105H so we could surface & square both decks & bore the cylinders for the new oversize pistons. The final machining operation was to hone the cylinders to the finished size in our Sunnen CK10 cylinder hone to give it a piston-to-wall clearance of two and a half (.0025) thousandths. The block is now clean, true, square & on size for the customer to do the final touches & assembly.
Motor Mission Machine & Radiator 5435 Desert Point Dr. Las Vegas, Nv. 89118 Ph: (702) 649-2366 or (702) 649-0648 Fax: (702) 649-4133 www.MotorMission.com Facebook.com/MotorMission