Mahle MS Piston Set BBC 540ci 4.500in Bore 4.25in Stroke 6.385in Rod .990 Pin 38cc 13.2 CR Set of 8

If you're building a serious performance Big Block Chevy, this Mahle MS Piston Set is designed for your 541 cubic inch engine. These pistons are crafted for a 4.500 inch bore and work with a 4.250 inch stroke, utilizing a 6.385 inch connecting rod and a standard .990 inch wrist pin. The 38cc dome volume contributes to a substantial 13.2:1 compression ratio, ideal for naturally aspirated or forced induction applications where maximum power is the goal.

Mahle is well-known for their piston manufacturing, and this set is no exception. Constructed from 2618 aluminum alloy, these pistons are built to handle the high stresses and temperatures found in performance engines. The material choice offers a good balance of strength and light weight, which is crucial for engine longevity and performance. Each piston weighs in at approximately 590 grams, helping to reduce reciprocating mass for improved engine response. This set includes eight pistons, providing a complete solution for your V8 engine build.

When installing these pistons, remember they are designed for a standard deck height of 9.800 inches on your Big Block Chevy block. It's important to consult your engine builder or Mahle's technical documentation for specific installation procedures, ring gap recommendations, and clearance specifications to ensure optimal performance and durability. Please note that this piston set is not CARB approved and cannot be shipped to California.