Crower 74154F Features:

Crower 74154F shaft rocker system for TFS -5 18° SBC applications with 5/8 shafts. Stainless steel shaft-mount rockers built for extreme rigidity, valvetrain accuracy, and longer service life. CNC-machined ball race alloy steel shafts are heat-treated twice and micro-finish ground in-house. Advanced design uses a needle bearing roller tip to help reduce heat versus traditional rocker designs.

Shaft Rockers Tfs -5 18 D 5/8 In. Shafts Features:

• SBC 18° shaft-mount stainless rockers with 5/8 in. shafts, rigid valvetrain geometry for precise high-RPM valve control
• CNC-machined ball-race alloy steel shafts, double heat-treated and micro-finish ground for strength and smooth operation
• Needle-bearing roller-tip design, reduced friction and heat versus traditional rocker layouts under sustained competition use
• High-temperature stainless construction, longer service life potential than comparable aluminum systems in severe-duty conditions
• Billet and stainless custom rocker system for TFS -5 18° Small Block Chevy applications, easier installation and maintenance