Mahle MS Piston Set GM LS 347ci 3.908in Bore 3.622in Stk 6.125in Rod .927 Pin -4cc 10.1 CR Set of 8

This set includes eight forged pistons from Mahle, designed for GM LS engines displacing 347 cubic inches. Each piston features a 3.908-inch bore, a 3.622-inch stroke, and is built to work with a 6.125-inch connecting rod and a 0.927-inch wrist pin. These pistons are specifically crafted to achieve a 10.1:1 compression ratio with a -4cc dish volume, making them a solid choice for performance engine builds.

Mahle uses 4032 aluminum alloy for these pistons, which offers a good balance of strength and thermal expansion characteristics suitable for demanding applications. The pistons weigh approximately 409 grams each, contributing to a well-balanced rotating assembly. This set is a direct replacement for many GM LS engine configurations, offering an improved performance ceiling over stock cast pistons.

When rebuilding or upgrading your GM LS engine, choosing well-built internal components like these Mahle pistons is crucial for reliability and power. Remember that this product is not CARB approved and cannot be shipped to California. Always consult your engine builder or a professional mechanic for specific installation requirements and compatibility with other engine components.