5.0" BORE BBC 1070W Series
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1070W The 1070W series is a drag race 5.0" bore space splay cap block. The 1070W is offered in a spread .110" or spread .160" main spacing configuration and it features a 1.0" high cam. These blocks are very popular for any 5.0" bore space motors from 500 to 800+ cubic inches. The 1.0" high cam design is well suited for Alan Johnson, Sonny's wedge, and Sonny's semi-hemispherical cylinder heads.
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Standard 5.0 bore space
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Plus 1.0 cam height
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Standard deck heights 11.100, 11.500 or 11.625
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Any popular 5.0 head bolt pattern
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Splay bolt main caps (front four)
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Lifter pattern to match cylinder heads
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Water cooling
OPTIONS:
Non standard deck heights
Non standard cam size
Head stud kit
Replacement sleeves
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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 size to match cam core2 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
