Crower 74521B045 Features:

Crower shaft rocker shim for stand-to-cylinder-head installation 0.045 in. thick shim with 0.1625 in. mounting holes Fits LS1 and LS7 applications with 8 mm mounting bolts Helps set optimum rocker arm-to-valve geometry at the mounting stand

Shaft Rocker Shims Stand .045 Thick .1625 Mounting Holes Features:

• 0.045 in. stand-to-cylinder head shim for rocker geometry correction and valvetrain setup on compatible shaft-mount applications
• 0.1625 in. mounting holes sized for 8 mm mounting bolts in LS1 and LS7 shaft rocker stand installations
• Precision base stand spacing for optimizing rocker arm-to-valve geometry and correcting installed stand height
• Compatible with shaft rocker stand shimming when cylinder head machining or valvetrain changes require geometry adjustment
• Direct-fit shim design for stand mounting alignment, consistent spacing, and accurate rocker system setup