Mahle MS Piston Set SBF 427ci 4.125in Bore 4.000in Stroke 6.25in Rod .927 Pin -6cc 12.0 CR Set of 8

These Mahle MS Series pistons are forged from 4032 aluminum, a material known for its strength and resistance to expansion, making them a solid choice for high-performance builds. They are specifically designed for Ford Small Block 427ci engines, featuring a 4.125-inch bore and a 4.000-inch stroke, which are key dimensions for achieving that classic 427ci displacement. The 6.250-inch rod length and .927-inch pin diameter are also critical measurements that ensure proper fitment and geometry within the engine block.

With a -6.5cc dish volume, these pistons contribute to a 12.1:1 compression ratio when paired with the right cylinder heads and gasket combination. This compression level is ideal for naturally aspirated performance applications where maximizing power output is the goal. Each piston weighs in at 435 grams, a well-balanced weight that helps maintain engine smoothness and reduces stress on rotating components. Mahle's reputation for well-built engine components means you can trust these pistons to handle the demands of a performance-oriented engine.

This set includes eight pistons, enough for a complete V8 engine. Please note that these pistons are not CARB approved and cannot be shipped to California. It's always recommended to consult with your engine builder or refer to Mahle's technical documentation for specific installation guidelines and compatibility with other engine components to achieve optimal results.