Page 204 of GM Performance Parts 2006 Catalog by GM Parts Direct

DRCE 2 Bare Block (front) A Lifter Valley View A BIG-BLOCK DRCE (DRAG RACE COMPETITION ENGINE) BLOCKS Six-time NHRA Pro Stock world champion, Warren The Professor Johnson, runs DRCE, why dont you? This family of blocks was specifically designed for 500 cubic inch Pro Stock drag racing competition. The camshaft has been raised, the distributor hole has been moved, and the bore spacing allows for the preferable big bore with short-stroke pistons and crankshaft for enhanced performance. The big bore design unshrouds the heads so you can run bigger cylinder head valves and get more air into the engine. Even the head bolt holes are not drilled, so either Pontiac S/D, Olds DRCE, or Chevrolet bolt pattern heads can be used. Our DRCE 3 block is the latest Pro Stock block that features a raised camshaft, lighter weight, and the latest evolution of Pro Stock design from some of the best racers in the world. All of these blocks are sold solid, without the lifter or head bolt holes drilled and tapped, which allows Pro Stock race teams to design their own specific locations for maximum power. Whatever it takes to make you a champion, GM Performance Parts is there! See chart on page 196 for complete specifications. DRCE Block Technical Notes: CNC-machined to +/-.001" tolerance No. 2 4 main bearing bulkheads moved .060" Priority main oiling dry-sump system No lifter bosses, solid bar can be drilled as required No head bolt holes Siamese Cylinder bores, 4.900" bore spacing Bell housing bolt pattern accommodates Olds, Pontiac, Chevy bolt patterns Each block supplied with sonic test data sheet Dual starter mounting locations Front engine mounts only Requires camshaft with distributor gear behind rear bearing Uses Big-Block Chevrolet crank, cam, balancer, flywheel and water pump A. 24502572 DRCE 2 Bare Block, gray iron CNC-machined iron 4-bolt block 9.525" deck height, may be machined to 9.000" Camshaft raised to 5.750", Cam tunnel accommodates 55mm cam bearings 4.500" semi-finished bore 4.700" max bore 4-bolt SAE 8620 main caps, 16 splayed on center 3 mains Oil pan rails spread .400" per side for additional stroke clearance Tested to 1400-plus horsepower! 12480026 DRCE 2 Bare Block, compacted graphite 7 CNC-machined compacted graphite 4-bolt block 9.525" deck height, may be machined to 9.000" Camshaft raised to 5.750", Cam tunnel accommodates 55mm cam bearings 4.500" semi-finished bore 4.700" max bore 4-bolt SAE 8620 main caps, 16 splayed on center 3 mains Oil pan rails spread .400" per side for additional stroke clearance Tested to 1400-plus horsepower! DRCE 2 Bare Block (rear) A CHEVY BIG-BLOCK V-8 202 DRCE 2 Main Caps A

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