ARP Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - 14.5 Degree Sonny Leonard / BRODIX Head - BRODIX Big Block Chevy 91619039 NPT or 8 AN port

NPT or 8 AN port sizes to match most EFI fuel systems

The modern high-tech look will give any engine an aggressive look to match it's performance

1948-1949 STREET ROD CID 454Vehicle Applications: 1923-1938 STREET ROD CID 396

351W) Swivel Thermostat Housing 1-1/2" Hose Connection

ARP Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - 14.5 Degree Sonny Leonard / BRODIX Head - BRODIX Big Block Chevy 91619039 NPT or 8 AN portProduct Description: Cylinder Head Stud Kit 12 Point Nuts Chromoly Black Oxide 14. 5 Degree Sonny Leonard Brodix Head Brodix Aluminum Big Block Chevy Since 1968, ARP is the fastener of champions and the world leader in fastener technology.