12-Point Nut, Chrome Moly Black Oxide 980cc Larger valve reliefs for +1mm

Larger valve reliefs for +1mm valve sizes

5 Nuts to mount your water pump if you're using a billet block

G4X PlugIn Key Features (where applicable):

Compact size ideal for tight engine bays or transverse engines

12-Point Nut, Chrome Moly Black Oxide 980cc Larger valve reliefs for +1mm7 16" UNF Thread, 5 8" Socket (10 Pack) Part Number : AR301 8354 Available in a variety of sizes to suit your needs, all ARP 12 point nuts are constructed from 8740 chrome moly steel or ARP Stainless, and meet ARP's 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