Mahle MS Piston Set GM LS 427ci 4.125in Bore 4in Stk 6.125in Rod .927 Pin -25cc 9.9 CR Set of 8

If you're building a high-performance GM LS engine, especially a 427 cubic inch stroker with LS7-style heads, a solid set of pistons is crucial. This Mahle MS Piston Set is designed for that kind of serious build, giving you a strong foundation for significant power gains.

These are forged pistons, made from 2618 aluminum, which is a well-known material for its strength and ability to handle high temperatures and pressures found in performance engines. They feature a -25cc dish, which helps achieve a 9.4:1 compression ratio with a 4-inch stroke and 4.125-inch bore, making them a good match for LS7-style cylinder heads. The pistons weigh in at 454 grams, and they use a 6.125-inch connecting rod with a standard .927-inch wrist pin. This set includes everything you need for an 8-cylinder engine, ensuring a complete and balanced build.

Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For any high-performance engine build, using quality components like these Mahle pistons is key to reliability and achieving your power goals.