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Butler Performance Custom Short Block Kit, 400 Block, 406-412 ci, 3.750" Str (Unassembled)
BP-SB-Kit-400-3750
- Customized Butler Performance Short Block Kit
- Choose Bore Size
- 3.750" Stroke
- Great budget friendly package tailored to you
- All short blocks undergo the "Butler Process"
Availability: Now ships in 4-6 Weeks!!! (slightly longer for full custom pistons). Ships to business address. Residential or liftgate are available for additional charges
Was:
$5,799.00
Sale:
$5,219.10
Description
406-412 CI short block kit
Complete Internally Balanced rotating assembly prepped block
- 3.750" stroke Cast or 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 (Not the 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-400-3750
- BP-SB-Kit-400-3750
- Butler Performance
- Now ships in 4-6 Weeks!!! (slightly longer for full custom pistons). Ships to business address. Residential or liftgate are available for additional charges
- New
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