Foundry pattern for the Hit and Miss Engine casting is mounted on a match plate and should be ready to use. The alignment pin center line spacing is 15". Please note the core prints (Black), this pattern also requires a core box.This Hit and Miss Engine pattern is 34.5 cm (13.58") x 47 cm (18.5") x 10 cm (4"). Custom patterns are available for $60/hr for design time and $.25 per gram for 3D printing. Installation on a match plate is an additional $40.