Crower 74400X205F Features:

Crower exhaust stand for 5/8 in. shaft rocker mounting system, part number 74400X205F. Designed as Stand 205F exhaust for one-piece BIG BLOCK CHEVY stand applications. Compatible with BBC BB-3 XTRA cylinder heads in Crower shaft rocker valvetrain setups. Helps establish correct rocker geometry at half valve lift to reduce tip scrubbing and side-loading.

Exhaust Stand 5/8 Shaft R BBC Bb-3 Xtra, 5/8 Features:

• 5/8 in. shaft rocker exhaust stand for one-piece BBC stand systems, engineered for BB-3 XTRA cylinder head applications and precise valvetrain placement
• Optimizes rocker geometry at half valve lift, helping create a straighter load path for more stable shaft rocker operation under performance use
• Setup-shaft and gauge checked stand height for accurate alignment, with shaft height adjustment based on cam lift variance from 0.750 in. reference
• Helps reduce side-loading, tip scrubbing, and pushrod deflection to cut frictional horsepower losses and support longer valve guide service life
• Crower 205F exhaust stand configuration for shaft-mount rocker assemblies, application-specific fitment for Big Block Chevy valvetrain setups