8740 Chromoly Material. ARP 134-7401 Thermostat Housing Bolts. Improve appearance and eliminate pesky water leaks with ARP’s precision machined, heavy duty thermostat housing bolts.
ARP Chevy LS1 LS2 Stainless Steel 12 Point Oil Pan Bolt Kit - 434-6902
ARP SBC LS1 Main Stud Kit 234-5608
ARP for LS1 LS2 12pt valley cover bolt kit 134-8002
Arp 134-3201 LS1 LS2 hex water pump bolts w/thermostat housing bolts kit
ARP Stainless Steel Hex Bolt Kit for LS1 / LS2 Water Pump w Thermostat Housing
Arp 134-3202 LS1 LS2 12pt water pump bolts w/thermostat housing bolts kit
