Mahle MS Piston Set for GM LS 428ci with 4.130-inch Bore, Part Number 930221530

Description

Upgrade your performance engine with the Mahle MS Piston Set designed specifically for GM LS applications. This set features pistons with a 4.130-inch bore diameter and a compression height of 1.181 inches, engineered for optimal clearance and durability. The set includes pistons with a 4-inch stroke, 6.067-inch connecting rods, and a pin diameter of 0.927 inches, providing a robust foundation for high-performance builds. With a compression ratio of 11.8:1 and a total displacement of 429 cubic inches, these pistons are ideal for enthusiasts seeking significant power gains. The pistons are coated with phosphate and Grafal for enhanced wear resistance and corrosion protection, ensuring longevity even under demanding conditions. Weighing approximately 450 grams each, they strike a balance between strength and weight, contributing to improved engine responsiveness and efficiency. This set is not carb-approved and requires acknowledgment of carb-related regulations during installation, making it suitable for specialized automotive applications. Designed for use in performance-oriented engines, these pistons are built to meet rigorous standards and provide consistent performance in high-stress environments. Whether you’re rebuilding an existing engine or assembling a new high-performance setup, the Mahle MS Piston Set offers precision engineering and reliable performance for your GM LS 428 cubic inch engine.

Features:

• Bore diameter: 4.130 inches for precise fitment

• Compression height: 1.181 inches for optimal clearance

• Stroke: 4 inches for balanced engine dynamics

• Connecting rod length: 6.067 inches for durability

• Piston pin diameter: 0.927 inches for secure attachment

• Compression ratio: 11.8:1 for high-performance output

• Displacement: 429 cubic inches for powerful engine capacity

• Coatings: Phosphate and Grafal for wear resistance and corrosion protection

• Approximate weight: 450 grams per piston for strength and efficiency

• Not carb-approved, design for performance applications

• Designed for GM LS 428ci engine builds