Crower 74149F Features:

Crower 74149F shaft-mount rocker arms for SBC Pro Action 235 cc and Pro Topline 235 cc heads 23° valve-angle design with 5/8 in. shafts for increased valvetrain stability at high rpm Stainless steel construction with 1.450 in. arm length, 0.350 in. intake offset, and 0.150 in. exhaust offset Uses base stand part number 052F and is built for strength retention under sustained high-temperature operation

Shaft Rockers Pro Action 23° SBC 5/8 In. Shafts Features:

• SBC shaft-mount rocker set for Pro Action 235 cc and Pro Topline 235 cc heads, 23° valve-angle geometry
• Stainless steel rocker arms for high-rigidity valvetrain control and strength retention at sustained high temperatures
• 5/8 in. shafts with 1.450 in. arm length, 0.350 in. intake offset, and 0.150 in. exhaust offset geometry
• Reduced rocker deflection for improved valve-train stability in high-rpm racing and endurance applications
• Base stand compatibility with 052F stands for streamlined installation, maintenance access, and service efficiency