JE Pistons Piston Kit - 4.250" - M8 391731
Regular price
$682.99 USD
Regular price
$682.99 USD
Sale price
$682.99 USD
Unit price
per
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Features:
Specifications:
- Propriety aligned grain flow forging technology for maximum tensile strength suited for high performance enviroment
- Cermic crown coating protects the piston by reducing heat transfer
- Internal and external bracing maintains optimized strength-to-weight ratio for longevity
- 3D undercrown milling in non-critical areas reduces overall weight
- Lateral gas ports and accumulator groove maintain power-producing ring seal even at high RPM and high boost
- Skirt coating reduces operating friction and wear throughout the life of piston
- Offset pin reduces piston rock and minimize engine operating noise
- Skirt notches for optimal clearance at the bottom dead center
- Kit includes two pistons, premium ring pack, wrist pins and wire locks
Specifications:
- Bore Size Imperial: 4.250"
- Piston Head Shape: Dished
- Stroke Length Imperial: 4.500"
- Bore Oversize - Imperial: Standard
- Compression Ratio Imperial: 11.25:1
- Model: Ultra Series
- Piston Material: Forged 2618 Aluminum
- Bore - Oversize: Standard
- Product Name: Piston Kit
- Riding Style: Street
- Units: Kit
Compatibility
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