Valve Spring Shims; 1.437 .015, .030, .060
1.437 Valve Spring Shims Critical when setting up proper valve spring height and pressures. High quality heat-treated valve spring shims are designed to handle the immense pressures of todays racing valve springs.
1.437 Valve Spring Shims Critical when setting up proper valve spring height and pressures. High quality heat-treated valve spring shims are designed to handle the immense pressures of todays racing valve springs.