Using the latest technology, J.W. Performance has come up with these Ultra Bell bellhousings. They are designed to be certified flexplate shields and allow for special motor and transmission combinations to be easily mated together. J.W. Performance Ultra Bell bellhousings are manufactured from one-piece cast aluminum, making them 5 times stronger than stock bellhousings. They are capable of withstanding even the most severe tire shake, can fit under most stock floorboards.