Crower 73650-12 Features:

Set of 12 stud-mount full-roller rocker arms for Chevy 200 and 229 90° V6 engines 1.5 rocker ratio with 7/16 in. stud fitment for compatible valvetrain geometry CNC-machined 17-4PH stainless steel bodies with 1025 heat-treated construction Alloy steel tip rollers and oversized needle bearings help reduce friction and wear

Rocker Arms Chevy 200-229 1.5 Ratio 7/16 In. Stud-mount Features:

• 17-4PH stainless steel, CNC-machined full-roller rocker arms for Chevy 200/229 90° V6, 1.5 ratio, 7/16 in. stud-mount, set of 12
• 1025 heat-treated bodies, alloy steel tip rollers, oversized needle bearings for reduced friction, smoother valvetrain motion, less wear
• Lightweight body design with clearance for valve springs up to 1.560 in., improved valve control at higher rpm, lower operating heat
• Includes sure-lock polylock rocker nuts for secure lash retention under heavy loads, helping maintain consistent valvetrain adjustment
• Full-roller design helps free horsepower, reduce guide and stem wear, and support longer valve spring life in performance builds