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PAC Racing Springs engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PAC Racing Springs lineup with fast shipping and expert fitment support — order with confidence.
Achieving the perfect valve spring installed height is critical for engine longevity and performance. The PAC Racing Springs S189-16 shim kit provides the precision adjustment needed for high-performance cylinder heads. Designed for builders who demand exact tolerances, these shims allow you to fine-tune spring pressure to compensate for valve job depth or component wear.
These shims are engineered to withstand the extreme heat and cycling found in racing environments. By maintaining consistent spring pressure across all cylinders, you prevent valve float and ensure your engine reaches its maximum RPM potential safely. Whether you are performing a street-strip build or a dedicated track engine, these shims provide the reliable foundation your valvetrain requires. Trust your engine build to the quality of PAC Racing Springs available at GGCRACING.
Other popular PAC Racing Springs products customers consider together:
PAC Racing Springs engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PAC Racing Springs lineup with fast shipping and expert fitment support — order with confidence.
Achieving the perfect valve spring installed height is critical for engine longevity and performance. The PAC Racing Springs S189-16 shim kit provides the precision adjustment needed for high-performance cylinder heads. Designed for builders who demand exact tolerances, these shims allow you to fine-tune spring pressure to compensate for valve job depth or component wear.
These shims are engineered to withstand the extreme heat and cycling found in racing environments. By maintaining consistent spring pressure across all cylinders, you prevent valve float and ensure your engine reaches its maximum RPM potential safely. Whether you are performing a street-strip build or a dedicated track engine, these shims provide the reliable foundation your valvetrain requires. Trust your engine build to the quality of PAC Racing Springs available at GGCRACING.
Other popular PAC Racing Springs products customers consider together:
