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World Products 084030

SB-Chevy Motown Cast Iron Block Mains: 400

World Products 084030

955-084030

made in usa
jegs shipping
Ships 12/12/16 if Ordered Today
Truck Freight: $119.00
World Products 084030 SB-Chevy Motown Cast Iron Block Mains: 400 $2,333.99
SB-Chevy Motown Cast Iron Block
  • Mains: 400
  • Bore: 4.115"

  • Specifications:

    Manufacturer's Part Number:
    084030

    Small Block Chevy Replacements with Major Muscle
    Here's an answer to the needs of performance enthusiasts for an alternative to searching through junkyards and swap meets for now-scarce factory 4-bolt main blocks, or puchasing an aftermarket block that requires special components. World's Motown block is 100% compatible. One of the more noticeable differences between the World Motown and OE Chevy blocks are the bulges at each cylinder. That's because the Motown has thicker cylinder walls, and the water jackets have been expanded to provide required cooling. Other physical differences include creating 1'' thicker bulkheads to provide ample support of the front and rear mains and the addition of special bosses for front-feed oil systems and rear dry sump scavenging. Solid pan rails are used to ensure proper sealing. Crankshafts with strokes up to 4.000'' can be used without clearancing the block. Stock-type oil pans can be used (no special wide rail designs). Most importantly, the block is manufactured in its entirety to QS-9000 specs using only two fixturing operations (there's no tolerance stacking as with factory blocks made on an assembly line).

    SPECIFICATIONS
  • Material: Cast iron
  • Deck Height: 9.025'' (standard Chevy)
  • Deck Thickness: .600'' minimum
  • Cam Bearings: Standard Chevy
  • Camshaft Location: Stock
  • Lifter Bores: Indexed (stock .8437'' 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
  • Lubrication: Priority main oiling system
  • Filtration: Integral mount for spin-on filter
  • Oil Pan Rails: Solid stock width (can be clearanced for Strokers)
  • Crank Clearance: 4.000'' stroke (with H-Beam steel rods)
  • Main Caps: Nodular iron 4-bolt (7/16'') with dowels
  • Fuel Pump: OE mount
  • Starter: OE mount
  • Motor Mounts: Front and side
  • Cylinder Head Holes: Blind tapped to prevent leaks
  • Weight: Approximately 190 lbs

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