Gene Ohly at Evans Speed Equipment prepared the rare alloy block forassembly. The integrally-cast iron liners had some scratches, so theywere bored 0.020 oversize. The liners are a mere 0.10 thick, so the lessmetal removed, the better. Iron blocks can safely be bored in excess of0.060. Ohly also align-honed the mains, burnished the lifter bores, andsquared the deck surface. The fully machined block weighs 64 pounds, 70pounds less than iron.