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Butler Performance 557 Casting Budget Short Block Kit, 400 Block, 433-440 ci, 4.000" Str (Unassembled)

Butler Performance
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Pricing: $5399.00

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  • BP-SB-Kit-400-4000-557
    • BP-SB-Kit-400-4000-557

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

    Availability: 10-12 weeks (slightly longer for full custom pistons). Ships to business address. Residential or liftgate are available for additional charges

    Description

    406-412 CI short block kit
    Complete Internally Balanced rotating assembly prepped block

    • 4.000" stroke forged crank
    • Internally Balanced
    • Available Bores- 4.150" (.030" over), 4.160" (.040" over), and 4.18" (.060" over)
    • Icon Flat Top Pistons
    • Total Seal Rings- File Fit
    • 6.625" I-Beam Rods on 3.750" Stroke
    • 6.635" H-Beam Rods on 4.000" Stroke
    • Performance Rod Bearings
    • Performance Main bearings
    • 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
      • ready to assemble

    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

    Compression Calculator

    400 Block Head cc w/-8cc Flat top
    Stroke Bore 72cc 87cc 96cc
    3.750" 4.155" 10.38 9.02 8.38
      4.181" 10.48 9.11 8.46
    4.000"

    4.155"

    		 11 9.55 8.87
      4.181" 11.12 9.65 8.96
    4.210" 4.155" 11.53 10 9.28
      4.181" 11.65 10.1 9.38
    4.250" 4.155" 11.63 10.09 9.36
      4.181" 11.75 10.19 9.46
    4.500" 4.155" 12.25 10.62 9.85
      4.181" 12.38 10.73 9.96
    Click here to use our compression calculator to calculate compression with thicker head gaskets, decked block, or other variables.

    Details

    • BP-SB-Kit-400-4000-557
    • BP-SB-Kit-400-4000-557
    • Butler Performance
    • 10-12 weeks (slightly longer for full custom pistons). Ships to business address. Residential or liftgate are available for additional charges
    • New

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