Crower 74400X203F Features:

Crower exhaust-side rocker mounting stand for 5/8 in. shaft systems Part number 74400X203F, identified as rocker mounting stand #203 Designed for One Piece BMF-385 Big Block aluminum heads Compatible with Big Block Chevrolet BB-2X, BB-2xtra, BB-3, and BMF-385 heads

Exhaust Stand 5/8 Shaft R Exhaust Side For Bmf-385 Features:

• 5/8 in. shaft rocker stand for exhaust-side mounting on high-performance valvetrain applications and precise geometry control
• Fits One Piece BMF-385 Big Block aluminum heads for application-specific installation and stable rocker shaft support
• Compatible with BB-2X, BB-2xtra, and BB-3 Big Block Chevrolet cylinder head profiles for broad racing head fitment
• Rocker mounting stand #203 configuration for secure shaft positioning, consistent alignment, and dependable valvetrain setup
• Purpose-built exhaust stand design for specialized cylinder heads, helping maintain rocker stability under demanding RPM loads