Made in USA
SBC Motown Iron Race Block Mains: 350
InfoVehicle Info Needed
WORLD PRODUCTSPART NUMBER: 955-084110

SBC Motown Iron Race Block Mains: 350

$4,54946
Truck Freight
ShippingShips on Sep 14, 2026
Lowest PriceLowest Price Guarantee

3.995 in. Bore
Billet Mains
Motown Cast Iron Engine Block
  • Small Block Chevy
  • 350 Mains
  • 3.990 in. Bore
  • Billet Splayed 4-Bolt Main Caps

    Features

    • Material: Cast iron
    • Deck Height: 9.025 in. (standard Chevy)
    • Deck Thickness: .600 in. minimum
    • Cam Bearings: Standard Chevy
    • Camshaft Location: Stock
    • Lifter Bores: Indexed (stock .8437 in. bore)
    • Bore: 3.950 in. (hone to 4.000 in.)
    • Maximum Bore: 4.200 in.
    • Cylinder Wall Thickness: .250 in. @ 4.200 in. 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 in. stroke (with H-Beam steel rods)
    • Main Caps: Billet 4-bolt (7/16 in.) with dowels to handle extreme pressures
    • Fuel Pump: OE mount
    • Starter: OE mount
    • Motor Mounts: Front and side
    • Cylinder Head Holes: Blind tapped to prevent leaks
    • Cam location is raised .134 in. over the stock Chevy location
    • Machined with Big Block Chevy cam journal
    • Weight: Approximately 200 lbs.

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • Part TypeEngine Block
    BrandWORLD PRODUCTS
    Package Height16.0
    Package Width23.0
    Package Length25.0
    Weight200.0 PG
    Part CategoryPerformance Parts
    Maximum Bore Diameter4.2 in (106.68 mm)
    Engine Block Weight (Lbs.)195
    Part FitmentSemi Universal
    Deck Height9.025 in (229.235 mm)
    ToolStroker Combinations
    Vendor Part Number084110
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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