ARP Pro-Series Rocker Arm Stud - SB Chevy, SB Ford w/ Roller Rockers and Stud Girdles HX02121 687" press-in style wheel studs

687" press-in style wheel studs and have multiple wheel bolt patterns for 5 on 4-1/2"

25" Chevy button clutch applications

Accurately drill holes in fasteners

adjustable from 5-12 PSI

New brass idle mixture screws

ARP Pro-Series Rocker Arm Stud - SB Chevy, SB Ford w/ Roller Rockers and Stud Girdles HX02121 687" press-in style wheel studsStuds offer improved reliability with longer thread engagement in the cylinder head and an extra large radius for reduced flex. Pro Series bolts are rated at 190, 000 psi tensile strength. 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,