4.840” Bore Space, Raised Cam, Tall Deck Blocks

1005w n27 adj
1005w n7 adj
The 1005 and 1007 blocks are for larger displacement drag race engine. They feature standard bore spacing and utilize a BBC head bolt pattern. Both versions have a spread pan pattern. Maximum recommended bore is 4.600” for nitrous engines, and 4.625” for normally aspirated. If you are building a large engine, then these models will fix all your block problems.

  • Premium CN Billet material
  • CNC machined by CN Blocks
  • Includes block, caps, main studs, and sleeves installed
  • Stock bore spacing
  • Standard deck heights: 11.1” or 11.625”
  • Optional deck heights: 11.0” - 12.0”
  • Stock head bolt pattern
  • Chevrolet main size
  • Aluminum main caps
  • Splay Bolt main caps (front four)
  • 1/2” main studs
  • +.400” or 1.0” cam height
  • Cam journal sizes: Stock BBC, 2.125”, 55 mm, or 60 mm
  • Stock lifter angle and spacing
  • Lifter sizes: .842”(stock), or .904”
  • Jesel keyway bushings available
  • Stock distributor location
  • Priority main based oiling
  • Special CN cam oil cross
  • #12 AN oil inlet
  • Utilizes remote filter
  • Valley oil scavenge
  • 10 3/8” DRCE oil pan pattern
  • Dual starter bosses

Lightening Option Available

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