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DRCE 3 Bare Block, Compacted Graphite (25534406)

DRCE 3 Bare Block, Compacted Graphite

Chevrolet Performance Big-Block DRCE (Drag Racing Competition Engine) blocks are the foundation of many of the most powerful Pro Stock drag racing engines. The DRCE family of engine blocks was specifically designed with 500-cubic-inch Pro Stock engines in mind. They are the latest evolution of Pro Stock engine design. In order to build optimum performance, the DRCE blocks have bore spacing that allows for the preferable big bore/short-stroke crankshaft combination. The camshaft has been raised and the distributor moved.

The big-bore design unshrouds the heads, which means bigger valves can be used. The result is maximized air/fuel mixtures. All DRCE blocks are sold solid, without lifter holes or head bolt holes, so any GM Big-Block cylinder heads may be used. The DRCE blocks are available in either gray iron or compacted graphite (an extremely high-strength material that helps the block combat bore distortion and crank deflection under stress).

• CNC-machined compacted graphite 4-bolt block
• 9.250" deck height, can be machined to 9.000"
• Camshaft raised to 7.067"
• Cam tunnel accommodates (9) 60mm cam bearings
• Cam tunnel is closed (no oil drain to rotating assembly)
• 4.590" semi-finished bore
• 4.700" max bore
• 2.500" crankshaft main journal
• 4-bolt SAE 4140 “doweled after assembly” main caps, 22° splayed on center 3 mains
• Highest available quality main studs
• Oil pan rails spread to 12"
• Oil and water plugs are AN O-ring style
• Tested to 1400-plus horsepower!

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

NOTE: Compacted graphite is an extremely high strength material that helps the block combat bore distortion and crank deflection under heavy loads -like making 1400-plus horsepower at 10,000 rpm!

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Our Price: $7,023.05
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