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Butler Performance Custom Short Block, 428 Block, 487-495 cu. in. 4.500" Stroke (Assembled)
BP-SB-428-4500
- Customized Butler Performance Short Block
- Choose 4.500" Stroke
- 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
- 4.500" stroke forged crank (4-Bolt Billet Mains Caps recommended for 4.5" stroke)
- 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
- 428 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
Compression Calculator
| 428 Block | Head cc w/-8cc Flat top | |||
| Stroke | Bore | 72cc | 87cc | 96cc |
| 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-428-4500
- BP-SB-428-4500
- Butler Performance
- Contact us for lead time
- New
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