ARP Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Small Block Mopar 144-4001 R060015XL then they are black hard

then they are black hard anodized to provide the toughest lug nut around

The GenV WG50 ProGate50 External Wastegate is a Motorsport-proven

So for your weekend-warrior who doesn't want to work with terminating universal sets

Explorer Sport

Simply install the height micrometer instead of a valve spring

ARP Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Small Block Mopar 144-4001 R060015XL then they are black hardARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Cylinder Head Stud Kit Hex