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Butler Performance Custom Short Block, 400 Block, 406-412 cu. in. 3.750" Stroke (Assembled)

Butler Performance
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  • BP-SB-400-3750
    • BP-SB-400-3750

    • Customized Butler Performance Short Block
    • Choose 3.75" Stroke Cast or Forged Crank
    • Create a custom package tailored to you
    • All short blocks undergo the "Butler Process"

    Contact Us
    (866)762-7527
    Availability: Contact us for lead time

    Description

    434-494 CI short block
    Complete Internally Balanced longrod rotating assembly & 
    high-performance prepped block

    • 3.750" stroke cast or forged crank
    • Internally Balanced
    • Choose Flat Top, Dish, or Dome Pistons- Add head casting or head cc info at checkout and we will confirm compression ratio
    • H-Beam Rods
    • File fit rings
    • Performance Rod bearings
    • Performance Main bearings
    • Includes Viton Rear Main Seal
    • 400 Performance Prepped Block
      • cleaned
      • magnafluxed
      • sonic tested
      • completely deburred
      • bored and honed with torque plate
      • line honed with ARP main studs
      • deck squared
      • cam bearings and brass freeze plugs installed
      •  Assembled by a Butler Engine Specialist
    • Can be upgraded with various options

    Included reusable engine cradle

    Images for display purposes only and could show optional parts. Contact us for a custom quote for your application and specifications