ARP Hi-Performance Series Head Bolt Kit - SB Chevy - Cast Iron OEM, BRODIX -8, -10, -11, -11XB Heads - Hex Heads Seat Mounting Bracket 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

1955-1964 Cadillac Series 75 Fleetwood

1957-1960 Chevrolet Truck

1984-1995 Pontiac Bonneville

ARP Hi-Performance Series Head Bolt Kit - SB Chevy - Cast Iron OEM, BRODIX -8, -10, -11, -11XB Heads - Hex Heads Seat Mounting Bracket The Top Air system fitsHigh Performance Series Bolts are rated at 170, 000 PSI and available with hex or 12 pt. Heads. Kits include parallel ground washers. ARPs 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.