Crower 74521A045 Features:

Pedestal-mount shaft rocker shim for stand-to-cylinder-head spacing in shaft rocker systems 0.045 in. thick shim with 0.2225 in. mounting holes for 7/16 mounting bolts Helps correct rocker arm-to-valve geometry to support accurate valve timing Installs between the rocker stand and cylinder head to reduce valve guide wear

Shaft Rocker Shims Stand .045 In. Thick, .2225 In. Features:

• 0.045 in. stand-to-head shim for rocker geometry correction and valvetrain alignment in shaft-mount applications
• 0.2225 in. mounting holes for 7/16 bolts, precise pedestal-fit positioning during rocker stand installation
• Helps restore rocker arm-to-valve geometry, supporting accurate valve timing and reduced valve guide wear
• Pedestal-mount spacer design for placement between rocker stand and cylinder head in performance engine builds
• LS1 and LS7 application-compatible shaft rocker shim, individual piece for targeted stand height adjustment