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  • Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
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Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod

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Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod

Mahle
mhl930219305
Out of stock
Engine
$860.99
Upgrade your GM LS engine with the Mahle MS Piston Set designed specifically for 403 cubic...
Mahle MS Piston Set for GM LS 403ci with 4.005in Bore, 4in Stroke, and 6.125in Rod
Description

Upgrade your GM LS engine with the Mahle MS Piston Set designed specifically for 403 cubic inch applications. Made with high-quality materials, these pistons feature a bore diameter of 4.005 inches, a stroke of 4 inches, and a connecting rod length of 6.125 inches. The pistons are engineered with a compression ratio of 10.7:1, delivering optimal performance and efficiency. Coated with phosphate and Grafal, these pistons offer excellent wear resistance and durability for demanding engine builds. The set includes eight pistons, each with a piston pin diameter of 0.927 inches and a displacement of -12.0cc, providing the perfect fit for your high-performance engine rebuild. These pistons are not carburetor approved and require carb acknowledgment, making them suitable for specialized applications where EPA compliance is not a primary concern. Their construction adheres to Prop 65 standards, ensuring safety and compliance for automotive use.

Features:

  • Bore diameter: 4.005 inches for precise engine machining
  • Stroke: 4 inches to match your engine's specifications
  • Connecting rod length: 6.125 inches for optimal combustion chamber geometry
  • Piston pin diameter: 0.927 inches for secure pin fit
  • Displacement: -12.0cc for performance tuning
  • Coatings: Phosphate and Grafal for enhanced wear resistance
  • Designed for GM LS 403 cubic inch engines
  • Compression ratio: 10.7:1 for balanced power and efficiency
  • Set of 8 pistons for complete engine rebuild
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