C N Blocks BBC 4.84" BC Cross Bolted +.400" Raised Cam


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Bolt Big Block Chevrolets
4.840 Bore Space (BASE PRICE SHOWN)

These blocks are intended for serious blower racers utilizing BBC based engines. The 1040Y can be used as a replacement block for KB Olds or Arias New Century blocks. The 1041Y raises the cam to +.400 for larger cam cores and better push rod geometry. The 1050Y & 1070Y are cross bolted, 5.0 bore space, BBC blocks. These blocks are intended for use in radical blower combinations. The 1050Y features spread .160 mains and a +.400 high cam, while the 1070Y raises the cam to +1.0. These blocks allow the motor builder to use bores of 4.600 to 4.750.
Premium CN Billet material
CNC machined at CN Blocks
Includes block, caps, main studs, and sleeves installed
Standard deck heights available: 10.2 and 10.7
Optional deck heights from 9.5 to 10.7
Big Block Chevrolet main size
Aluminum main caps
All 5 main caps are cross bolted
9/16 Tool steel main studs, 1/2 side bolts
Cam sizes available: BBC, 2.125 55mm, 60mm, or 65mm
Lifter angle to match cylinder heads
Lifter sizes available: .842, .904, .936, 1.00, or 1.062
Optional Jesel keyway bushings
Stock distributor locations or distributor delete
Priority main based oil system
Special CN Blocks cam oil cross
#12 AN oil inlet
Wet sump available on 1040Y & 1041Y
Dry sump or external wet sump only on 1050Y & 1070Y
KB Olds or CN Blocks wide pan pattern
GM bell housing pattern
Dual started bosses
Models Available
1040Y
4.840" Bore Space
+.250 high cam
Cross bolted cap
Dry block
BBC
1041Y
4.840" Bore Space
+.400 high cam
Cross bolted cap
Dry block
BBC
IF YOU ARE BUILDING YOUR OWN ENGINE AND NEED THIS BLOCK MACHINED PLEASE SEE BLOCK MACHINING AND WE WILL PRECISION MACHINE IT FOR YOU.

  • Model: CN 1041Y
  • Shipping Weight: 160lbs
  • 1 Units in Stock
  • Manufactured by: Nelson Competition, Inc.


This product was added to our catalog on Monday 22 August, 2011.

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