Made in USA
Merlin IV Big Block Chevy Cast Iron Engine Bare Block
InfoVehicle Info Needed
WORLD PRODUCTSPART NUMBER: 955-095112-55

Merlin IV Big Block Chevy Cast Iron Engine Bare Block

$5,17348
Truck Freight
ShippingShips on Sep 14, 2026
Lowest PriceLowest Price Guarantee

4.595 in. Cylinder Bore
Merlin IV Cast Iron Engine Block
  • Big Block Chevy
  • 2-Piece Rear Main Seal
  • 4.595 in. Bore
  • 10.200 in. Deck Height
  • 55 mm Cam Journal
  • .904 in. Lifter Bore
  • Billet Splayed Main Caps

    Features:

    • High-Density Cast Iron Construction 
    • Priority Main Oiling
    • Front Oil Inlet and Restrictor Provision
    • Bores to 4.625 in. max
    • Cylinder Walls 0.310 in. @ 4.600 in. Bore
    • Clearance for 4.750 in. Stroke - 10.200 in. Deck
    • Splayed 4-Bolt Main Caps with Dowels & Stepped Register, ARP Fasteners
    • 2-Piece Rear Main Seal
    • OE-style Fuel Pump & Starter Mounts
    • 270 lbs.
    • 55 mm cam does not require lifter bushings due to relocation of .500 oil gallery

    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 Width270.0
    Weight270.0 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Vendor Part Number095112-55
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    Items You Need

    Engine Lube & Sealant Kit

    JEGS

    Engine Lube & Sealant Kit

    Part Number : 555-28000K
    $4135
    Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]

    JEGS

    Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]

    Part Number : 555-81156
    $9099$111.99
    You Save$21.00
    Rear Main Seal Buick & Chevy V6/Big Block

    FEL-PRO

    Rear Main Seal Buick & Chevy V6/Big Block

    Part Number : 375-2904
    $1799
    1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]

    JEGS

    1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]

    Part Number : 555-M200DB
    $5239$56.99
    You Save$4.60
    Heavy-Duty Nitrile Gloves [7 mils Thick, Large]

    JEGS

    Heavy-Duty Nitrile Gloves [7 mils Thick, Large]

    Part Number : 555-1124
    $1799$19.99
    You Save$2.00
    Lo Boy Creeper 250 lb. Capacity

    JEGS

    Lo Boy Creeper 250 lb. Capacity

    Part Number : 555-81154
    $5999$65.99
    You Save$6.00
    Cam Bearing Tool Set for Installation & Removal of Camshaft Bearings

    JEGS

    Cam Bearing Tool Set for Installation & Removal of Camshaft Bearings

    Part Number : 555-80597
    $19599$212.99
    You Save$17.00
    Shop Towels Red

    JEGS

    Shop Towels Red

    Part Number : 555-80184
    $899$9.99
    You Save$1.00
    Engine Stand [1000 lb. Capacity]

    JEGS

    Engine Stand [1000 lb. Capacity]

    Part Number : 555-80040
    $9999$107.99
    You Save$8.00
    Engine Stand [1250 lb. Capacity]

    JEGS

    Engine Stand [1250 lb. Capacity]

    Part Number : 555-80041
    $12499$134.99
    You Save$10.00
    Disposable Shop Towels

    JEGS

    Disposable Shop Towels

    Part Number : 555-80187
    $1839$19.99
    You Save$1.60
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!