PAC Racing Springs PAC-S194-16 Valve Spring Shims, 1.500 in OD, 0.020 in Thick, Set of 16

PAC Racing Springs PAC-S194-16 valve spring shims are designed to provide precise spring seat adjustment in high-performance engine applications. Manufactured from durable steel, each shim helps establish the correct installed height and spring pressure while supporting consistent valvetrain setup. This set includes 16 shims for convenient installation or replacement during engine assembly and tuning.
The PAC-S194-16 shims feature a 1.500-inch outside diameter and a 0.645-inch inside diameter, making them suitable for compatible valve spring and cylinder head configurations. Their 0.020-inch thickness allows builders and technicians to fine-tune valve spring geometry and installed height in controlled increments. Proper fitment should be verified against the specific cylinder head, valve spring, retainer, and engine combination before installation.
Built for demanding performance use, PAC Racing Springs components are engineered to support reliable valvetrain operation in competition, racing, and performance street applications. Use these steel valve spring shims as part of a carefully measured spring installation process, following the engine builder’s specifications and recommended safety procedures.

Features:

• Brand: PAC Racing Springs

• Part Number: PAC-S194-16

• Product Type: Valve spring shim set

• Material: Steel

• Thickness: 0.020 inch

• Outside Diameter: 1.500 inches

• Inside Diameter: 0.645 inch

• Quantity: 16 shims per set

• Application: Valve spring installed-height and seat-pressure adjustment