Crower 74400X005F Features:

Replacement shaft rocker mounting stand #005F for MAST LXR cylinder heads Designed for applications using a 5/8 in. mounting shaft Fits select LS-based setups, including Gen X 255 LS3 and 11° LXR - LS3 255 cc heads Base stand ID number 005F helps verify the existing valvetrain stand

Shaft Rocker Mounting Sta For Mast Lxr Heads, 5/8 Features:

• Replacement stand for MAST LXR heads with 5/8 in. shaft fitment, restoring correct rocker mounting geometry in matched valvetrain setups
• Compatible with select LS-based applications, including Gen X 255 LS3 and 11° LXR - LS3 255cc cylinder head combinations
• 005F base stand ID reference helps confirm proper replacement during service, reducing fitment guesswork on existing assemblies
• Built for cylinder head-specific rocker system geometry and defined maximum lift requirements, supporting accurate valvetrain alignment
• Ideal for baseline-spec builds; modified valve length or added lift may require a custom stand to maintain proper rocker geometry