The Tillotson Racing Block, 70mm (212cc Crankcase) is a high-performance engine block designed to provide maximum power and reliability for racing applications. This block is specifically designed for use with Tillotson Racing engines and is made from high-quality materials to ensure durability and longevity. The 70mm (212cc Crankcase) size provides ample displacement for high-performance racing engines, while the precision machining ensures a perfect fit and maximum performance. The block features reinforced main bearing caps and a heavy-duty deck surface for added strength and durability. If you're looking to build a high-performance racing engine, the Tillotson Racing Block, 70mm (212cc Crankcase) is an excellent choice. This is the strongest block ever made for the clone / predator market featuring a thicker casting throughout and built in gussets providing the strength you need for your high HP builds! 70mm bore block Cast iron sleeve This block has built-in mounting tabs for a fuel tank