ARP Main Stud Kit - Hex Nuts - 2-Bolt Mains - Chromoly - Black Oxide - Girdle - Small Block Ford NMO-MT-15 The Top Air system fits

The Top Air system fits over the forward two holes and extends down the front of the helmet and just under the top of the visor

Finished with state of the art heat treat and available solid or gundrilled

AN Size: -8

Authentic OE gaskets

ARP Main Stud Kit - Hex Nuts - 2-Bolt Mains - Chromoly - Black Oxide - Girdle - Small Block Ford NMO-MT-15 The Top Air system fitsARPs 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: Main Stud Kit Hex Nuts 2