5.0" Bore Space
Splay Cap
BBC
The 5.0” bore space BBC is the engine of the future in drag racing. Better cylinder heads, bolt patterns, and push rod geometry are just some of the reasons why this platform is the dominant engine design. We have designs for all the popular cylinder head configurations including—Alan Johnson, CFE, Eicke-Brodix, Ray Franks and Sonny’s.
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Premium CN forged Billet material
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CNC machined at CN Blocks
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Includes block, caps, main studs, and sleeves (installed)
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Standard deck heights available - 11.100”, 11.500” and 11.625” Optional deck heights from 11.00” - 12.00”
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Head pattern to match cylinder heads
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Big block Chevrolet main size
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Aluminum main caps
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Splay bolt main caps (front four)
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1/2” main studs
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Cam height— Plus .400” or plus 1.00”
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Cam size to match cam core—2 1/8, 55mm, 60mm babbit or roller bearings
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Lifter pattern to match cylinder heads
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Lifter sizes .904, .936
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No distributor
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Priority main based oil system
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Special CN Blocks cam oil cross
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#12 AN oil inlet
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Dry sump or external wet sump only
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Valley oil scavenge
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DRCE 10 3/8” oil pan pattern
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Dual starter bosses
D
R
Y
1050 Series - +.400 High Cam
1070 Series - +1.00 High Cam
L Series - Super Light Weight BBC
W
A
T
E
R
1050W Series - +.400 High Cam
1070W Series - +1.00 High Cam
1070WXT Series - +1.00 High Cam with extra tall deck height
