SBC AL/BLK 9.075-4.180-400 55MM CAM

While a direct product page for the specific MPN 31512343-55 was difficult to find due to website access issues and general search results, Dart engine blocks are known for their high-performance applications. The 'Little M2' series, which appears similar to the target product, is designed as a true racing engine block, compatible with most standard small block components. They feature a priority main oiling system for improved lubrication at high RPM, siamese cylinder bores with extra thick walls for strength, and billet steel 4-bolt main caps. These blocks are cast from high-strength iron.