CII-604SK Crate Innovations 604 Valve Spring Shim Kit

Crate Innovations 604 Valve Spring Shim Kit

We have assembled valve spring shim kits to accommodate the competitor who services his own valve train.

This kit contains 24 shims, each set of 8, a different thickness.

NOTE: adjusting shims are to be placed under the factory locating shim.

Valve seal must be removed for proper installation.

The kit includes:
• (8) .015 shims
• (8) .020 shims
• (8) .030 shims

Shims are color-coded and bagged individually for easy identification.

WARNING: GM minimum installed height specification is 1.780 inches.

Shimming springs less than specification can result in engine damage and/or disqualification of a competitor.

Only qualified personnel should attempt this procedure.