Mahle MS Piston Set SBF 427ci 4.125in Bore 4.000in Stroke 6.25in Rod .927 Pin -26cc 9.8 CR Set of 8

If you're rebuilding the heart of your Ford Small Block engine, especially a 427ci build aiming for serious performance, a solid set of pistons is where you start. This Mahle MS Piston Set is built for that purpose, designed to handle the demands of a high-performance engine with a 4.125-inch bore and a 4.000-inch stroke. These pistons are crafted from 4032 aluminum, a material known for its strength and ability to handle thermal expansion well, which is crucial for longevity in a performance application. The -26cc dish volume contributes to a 9.8:1 compression ratio when paired with the right cylinder heads and gasket, giving you a noticeable bump in power without being overly aggressive for pump gas in many setups.

Mahle has a long-standing reputation for making well-built engine components, and this piston set is no exception. The 6.250-inch rod length and the .927-inch pin diameter are standard dimensions for many performance Ford builds, ensuring compatibility with a wide range of connecting rods and wrist pins. Each piston weighs in at 435 grams, which is a good balance for performance and reliability, helping to keep reciprocating assembly balance manageable. This set includes eight pistons, ready to be installed in your 427ci SBF engine.

When undertaking a performance engine build like this, it's always a good idea to consult your machine shop or engine builder regarding specific clearances and assembly procedures. Remember that this piston set is not CARB approved and cannot be shipped to California. Ensure your build plans align with local emissions regulations.