One-Piece Rear Main Seal Race Block (front) GM PERFORMANCE PARTS ... Eliminator! Only GM Performance Parts can offer you such a huge selection of ... the show thanks to your GM Performance Parts race block! See chart on page 132 for ... complete specifications. GM Performance Parts Race Block Technical Notes: These ... tolerances! Cylinder decks, front and rear of case, oil pan rail surfaces and head ... pins are blueprinted! Non-standard cam bearings required (see each block for details) ... allow machining for the use of larger bearings Extra thick main bearing bulkhead ... quality main studs SAE 8620 steel main bearing caps Billet wet sump rear main cap can ... be adapted to dry sump with plugs Bearing cap inner bolts are spread 0.210" to ... 400 journal crankshafts Priority main oiling system 2-piece rear-main crankshafts ...
designed to be raced. GM Performance Parts has already done most of the precision ... center 3 mains (2-bolt steel front and rear mains) Camshaft raised .390" to 4.912 ... " Uses big block cam bearings (no small base circle cams here!) 3. ... 125" stroker crankshaft for big power Oil pan rails are spread .400" per side for ... extra stroke clearance (special oil pan required) Bottom of bores and oil pan ... journal size Priority main wet sump oiling system (remote oil filter only) Two- ... piece crankshaft seal Dual starter mounts Bosses for side ... complete specifications. Rocket Block (rear) CHEVY SMALL-BLOCK V-8 140 ...