Crower 74145F Features:

Crower 74145F shaft-mount rockers for SMALL BLOCK FORD Canfield Model #20450 Windsor cylinder heads CNC-machined 17-4PH stainless steel construction with heat-treated bodies for high-rpm racing durability 1.480 arm length with .100 intake and .100 exhaust offsets, using 085F stand ID, stand part #74400X085F Fully rollerized needle-bearing fulcrum and hardened tip wheels help reduce friction, side loading, and valve wear

Shaft Rockers Sbf Model # 17-4PH Stainless Steel Shaft-mount Features:

• 17-4PH stainless steel, heat-treated construction with CNC precision machining for high-rigidity valvetrain control on SBF Windsor builds
• Fully rollerized needle-bearing fulcrum with hardened tip wheels for reduced friction, smoother operation, and improved valve stem protection
• 1.480 arm length with 0.100 in. intake and 0.100 in. exhaust offsets for optimized geometry on Canfield 20450 Windsor heads
• 085F stand ID compatibility with shaft-mount design to minimize pushrod deflection, reduce side loading, and increase high-rpm stability
• Aircraft-quality 12-point nuts, thread-rolled hi-temp alloy lash adjusters, and secured axles for race-ready durability and trouble-free use