Like John said, make sure you use bolts designed for pressure plate attachment. ARP & Mr.Gasket both offer good, high strength pressure plate both, with the correct shank size needed. DO NOT use regular hardware store bolts. You can get away with such bolts on a diagpram pressure plate that uses dowel pins, but on a Long style clutch, the PP bolts not only hold the pressure plate to the flywheel, and transfer the load thru the shanks of the bolts, those shanks also locate the pressure plate concentric to the flywheel.