Gen III HEMI Engine Blocks & Components

Shop ACE INC Gen III HEMI Engine Blocks and performance components. Our GEN III Hemi Block is built from Compacted Graphite Iron — the most advanced HEMI Block material available. Each Engine Block is engineered for 3,000+ HP applications with superior bore stability, 14mm head stud capacity, and precision machining. Whether you're building a street machine or a full race engine, our Gen III HEMI Engine Block delivers performance with heart.