Crower 74187F Features:

Crower 74187F shaft-mounted rocker arm system for Chevy LS7 with RHS #54501 cylinder heads Stainless steel rocker arms resist sustained high temperatures for longer service life than aluminum designs Includes 5/8 in. shafts with precision-machined ball race alloy steel, double heat-treated, micro-finish ground construction Rocker geometry features 1.550 in. arm length, 0.250 in. intake offset, 0.000 in. exhaust offset, stand ID #105F

Shaft Rockers Rhs Chevy L LS7 5/8 Shaft Stainless Features:

• Stainless steel shaft-mounted rockers for Chevy LS7 with RHS #54501 heads, built for high-heat durability and longer service life
• 5/8 in. heat-treated, micro-finish ground shafts deliver extreme rigidity, stable valvetrain control, and race-ready reliability
• 1.550 in. arm length with 0.250 in. intake offset and 0.000 in. exhaust offset for correct LS7 RHS valvetrain geometry
• Hardened roller tip helps reduce valve stem scrubbing, support smooth operation, and improve wear resistance in harsh racing use
• Optimized for high-rpm performance, easy maintenance, and demanding dirt late model or marine endurance applications