World Products SB-Chevy Motown Race Blocks


World Products
World Products SB-Chevy Motown Race Blocks

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Perfect for Nostalgia Drag Racing or Oval Track Spec Classes

For competition applications where superchargers, turbos, nitrous or ultra high compression results in extreme combustion pressures, World Products offers Motown Race Blocks. The most significant difference between the race block and its standard sibling is the use of splayed billet steel 4-bolt main caps that distribute load over a larger area. Other features include reinforced main webs, bulkheads, and substantial deck and walls.

SPECIFICATIONS

  • Material: Cast iron
  • Deck Height: 9.025'' (standard Chevy)
  • Deck Thickness: .600'' minimum
  • Cam Bearings: Standard Chevy small block set
  • Main Bearings: Standard Chevy
  • Camshaft Location: Stock
  • Lifter Bores: Indexed (stock .843'' bore)
  • Bore: 3.990'' (hone to 4.000'') or 4.115'' (hone to 4.125'')
  • Maximum Bore: 4.200''
  • Cylinder Wall Thickness: .250'' @ 4.200'' bore
  • Water Jackets: Expanded for better cooling
  • Lubrication: Priority main oiling system
  • Oil System Features: Integral boss for front feed, rear scavenge boss, wet sump pump provision
  • Filtration: Integral mount for spin-on filter
  • Oil Pan Rails: Solid (stock width)
  • Crank Clearance: 4.000'' stroke (with H-Beam steel connecting rods)
  • Main Caps: Splayed billet steel 4-bolt (1/2'' bolts inside and 7/16'' studs outside)
  • Fuel Pump Location: OE mount
  • Starter Mount Location: OE mount
  • Motor Mounts: Front and side
  • Cylinder Head Holes: Blind tapped
  • Weight: Approximately 190 lbs



    		•
    Motown Cast Iron Race Blocks

    		955-084110
    		SB-Chevy Motown Iron Race Block
  • Mains: 350
  • Bore: 3.990"
    View this item
    $119.00
    		• $2,489.99
    Ships

    		955-084120
    		SB-Chevy Motown Iron Race Block
  • Mains: 350
  • Bore: 4.115"
    View this item
    $119.00
    		• $2,489.99
    Ships
    02/22/12

    		955-084130
    		SB-Chevy Motown Iron Race Block
  • Mains: 400
  • Bore: 4.115"
    View this item
    $119.00
    		• $2,489.99
    Ships