Mahle MS Piston Set SBF 347ci 4.030in Bore 3.4in Stroke 5.4in Rod .927 Pin -6cc 10.4 CR Set of 8

This Mahle MS Piston Set is built for Small Block Ford 347 cubic inch engines, specifically designed to work with Twisted Wedge cylinder heads. You get a complete set of eight pistons, ready to be installed in your performance build. These pistons feature a flat-top design with a -6.2cc dish, contributing to a 10.4:1 compression ratio when paired with the correct cylinder heads and gasket combination. The bore size is 4.030 inches, with a 3.400-inch stroke and a 5.400-inch rod length, utilizing a .927-inch pin. Each piston weighs in at approximately 425 grams.

Mahle uses a 4032 aluminum alloy for these pistons, which offers a good balance of strength and thermal expansion properties suitable for performance street and strip applications. This material choice helps ensure durability under demanding conditions while maintaining reasonable piston-to-wall clearance. The specific dimensions, including the 4.030-inch bore and the 3.4-inch stroke, are key for achieving the 347 cubic inch displacement commonly sought after in Ford performance builds. The included .927-inch pin is standard for many Small Block Ford applications.

When rebuilding or upgrading your Small Block Ford engine, choosing the right pistons is crucial for performance and longevity. This Mahle set is a well-built option for those aiming for a 347ci displacement with a 10.4:1 compression ratio, particularly when using Twisted Wedge heads. Please note that this piston set is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.