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Butler Performance Budget Short Block, 400 Block, 433-440 cu. in., 4.000" Stroke (Assembled)

Butler Performance
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  • BP-SB-400-557-4000
    • BP-SB-400-557-4000

    • Customized Butler Performance Short Block
    • 4.000" Stroke
    • Great budget friendly package tailored to you
    • Rated for up to 500hp only
    • All short blocks undergo the "Butler Process"

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

    Description

    406-412 CI short block (Assembled)
    Complete Internally Balanced rotating assembly prepped block

    • 4.000" stroke 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
    • Total Seal Rings- File Fit
    • 6.635" H-Beam Rods on 4.000" Stroke
    • Performance Rod Bearings
    • Performance Main bearings
    • Includes Viton Rear Main Seal
    • 400 (557 Model) 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

    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