Download INSTALLATION INSTRUCTIONS (STUD MOUNTED AND BOLT-ON) : Stud Mounted: Step 1: Rotate engine to number 1 cylinder TDC. Check distributor rotor to make sure it is at the number 1 cylinder terminal. Remove valve covers. Step 2: Remove old rocker arms for number 1 cylinder. If you are converting a pedestal type cylinder head, see the modifications instructions below. Step 3: Oil the pushrod, rocker stud threads, rocker arm and nut. Step 4: Install the new roller rocker arms for number 1 cylinder with the flat area on the trunnion shaft up. Step 5: Make sure the rocker does not bottom on the rocker stud radius. Check clearance through the entire lift range. Check rocker arm geometry. You may need to change pushrod length to achieve proper geometry. Step 6: Also check pushrod guideplate alignment. Some guideplates must be split to allow good pushrod alignment. Step 7: Install the rocker arm nuts and set cold lash/lifter preload. Tighten the rocker arm lock screw. Step 8: Rotate engine to the next cylinder in the firing order and repeat the process. Firing order: 302/460 1-5-4-2-6-3-7-8 351C/351W/302 HO 1-3-7-2-6-5-4-8. Cylinder Head Modifications for Rocker Arm Studs: Pedestal type cylinder heads can be modified for rocker arm studs (351C illustrated). Machine at right angles to the existing stud hole/bolt hole, not the bottom of the head. The valves in canted valve heads operate at compound angles. For 302/351W cylinder heads, measure from the top of the pedestal.