ARP 134-7401 Thermostat Housing Bolt Kit for CHEVROLET LS. 20mm UHL. 8740. 12pt ymm_38 DDeveloped to be used in

DDeveloped to be used in conjunction with the Akrapovič Slip-On Line (Titanium) and the Evolution Link Pipe Set (Titanium)

With the use of the optional Akrapovič Sound Kit

E-series 1975-1996

The system is engineered for closed-course track use while maintaining driving comfort by eliminating drone and unwanted flow noise

ARP 134-7401 Thermostat Housing Bolt Kit for CHEVROLET LS. 20mm UHL. 8740. 12pt ymm_38 DDeveloped to be used inAvailable in a variety of sizes to suit your needs, all ARP 12 point nuts are constructed from 8740 chrome moly steel or ARP 300 Series stainless steel material, and meet ARPs highest standards of quality. Rated at 180, 000 psi tensile strength, ARP 12 point nuts are manufactured in thick wall versions for optimum strength and rigidity and thin wall versions for applications with limited space requirements. All 8740 chrome moly steel nuts are black