Block Machining Bore, Deck and Hone Choate Performance

Full CNC blue print machining, (bore, deck and line honed).

• The Cylinder bores are blue print bored to a true 90 degrees from the crankshaft center line.
• Diamond honed to within .0002 inch for precise piston to cylinder bore clearances.
• We will main bore and line hone the crankshaft to precisely align the crankshaft in the engine block.
• We bore the block back to the crankshaft center line and hone the block to RA13 finish. The piston diameter measured to the nearest .0001 inch matched to cylinder bores.
• We will surface the Cylinder block to a finish of RA30 or lower, to meet factory specification in both flatness and smoothness for the block to head sealing surface. This is mandatory for proper sealing of a MLS Gasket.