Crower 74400X135F Features:

Crower shaft rocker mounting stand, Part No. 74400X135F, Stand ID 135F, for 5/8 in. shaft applications. Designed for LS1-1X cylinder heads using 7/16 bolts as a mounting stand for Crower shaft rocker systems. Direct replacement component for Crower LS1-1X shaft rocker system, compatible with Kit Part No. 74150F. CNC precision-machined in-house from aircraft-quality alloys for an ultra-rigid rocker shaft mounting base.

Shaft Rocker Mounting Sta 5/8 In. Shaft, Ls1-1x, 7/16 Features:

• 5/8 in. shaft mounting stand for LS1-1X heads with 7/16 bolts, precise rocker positioning for stable valvetrain geometry
• Aircraft-quality alloy construction, CNC-machined stand body, ultra-rigid support for shaft-mounted rocker arm assemblies
• Direct-fit component for Crower shaft rocker systems, correct rocker alignment to reduce pushrod deflection at high rpm
• Helps minimize valve guide wear and frictional losses, stand ID 135F configuration for matched system compatibility
• Replacement mounting base hardware for kit part 74150F applications, precision-fit design for consistent rocker assembly support