ARP 430-3505 S/S Starter Bolt Kit. ARP 400-1502 S/S Timing Cover Bolt Kit. ARP 454-2001 S/S Intake Bolt Kit 6pt. ARP 400-1212 S/S Header Bolt Kit - 3/8 x 1.00 UHL (16). As a results, installation pre-loads the amount the fastener is stretched during installation are very high.
