These Sportsman 429/460 Ford roller rocker arms are made from 4340 heat treated steel and feature a longer slot to eliminate stud bind issues. Rockers have a 1.72 ratio and are supplied with pivot balls and polylocks for 7/16" studs.
Fits 1968-1997 Boss 302, 351C-M, 400, 429, and 460 Big Block Ford V8. Set of 16.
NOTE: Use of this rocker arm requires the use of screw-in studs and guide plates. Some machine work required for the install of the screw-in studs.