001" machining tolerances! Cylinder decks, front and rear of case, oil pan rail ... pre-1986 oil pans required Extra thick deck surfaces with blind-tapped head bolt ... bores) 4.030" max bore 9.025" deck height Oil galleries for dry sump ...
Short Deck Race Block (rear) Short Deck Race Block (front) Four-Bolt Main Caps ... bores) 4.155" max bore 9.025" deck height Oil galleries for dry sump ... 24502650 283 Main, 350 Bore size Short-Deck Bowtie Race Block CNC Cast iron ... splayed caps on center 3 mains 8.325" deck (as of 10/03) (standard deck blocks are ... 9.025"), can be machined to 8.200" deck height Camshaft is raised 0.433" to 4 ... 12480050 283 Main, 350 Bore size Medium-Deck Bowtie Race Block CNC Cast iron ... caps on center 3 mains 8.700" deck (standard deck blocks are 9.025"), can ... be machined to 8.500" deck height Camshaft is raised 0.433" to 4 ...