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Butler Performance Custom Short Block Kit, 389 Block, 421-427 ci, 4.000" Str (Unassembled)
BP-SB-Kit-389-4000
- Customized Butler Performance Short Block Kit
- 4.0000" Stroke
- Great budget friendly package tailored to you
- All short blocks undergo the "Butler Process"
Availability: 12-15 weeks (slightly longer for full custom pistons). Ships to business address. Residential or liftgate are available for additional charges
Pricing:
$7,899.95
Description
389 short block kit
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
- 6.700" H-Beam Rods on 4.000" Stroke
- Performance Rod Bearings
- Performance Main bearings
- 389 Block 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
Details
- BP-SB-Kit-389-4000
- BP-SB-Kit-389-4000
- Butler Performance
- 12-15 weeks (slightly longer for full custom pistons). Ships to business address. Residential or liftgate are available for additional charges
- New
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