ARP PRO extended flywheel bolts are approx. 10 mm longer than the stock bolts. They are intended for use with Chevrolet LS style engines/cranks in a custom application.
ARP stands behind their products indefinitely with respect to materials and workmanship. Automotive Racing Products would like to deal with the customer directly when they have a problem. Automotive Racing Products is interested in customer satisfaction and will make exceptions on an individual and case-by-case basis.