Valve Springs, Retainers

Supertech 8mm Shim 3.00mm Thick

Supertech 8mm Shim 1.50mm Thick

Supertech 8mm Shim 1.45mm Thick

Supertech 8mm Shim 1.40mm Thick

Supertech Titanium Retainer For H1000 Series Springs w/ PVD Yellow Coating - Set of 16

Supertech Titanium Retainer for BMW S54 M3 / SPR-2521/2 / 6.0mm Valve Stems (Drop Ship Only)

Supertech Mazda Miata 1.8L Single Valve Spring Kit

Supertech Mazda Miata 1.8L Dual Valve Spring Kit

Supertech Mazda Miata 1.6L Dual Valve Spring Kit (70lbs at 34.2mm Installed Height)

Supertech Mazda Miata 1.6L Dual Valve Spring Kit

Supertech Mazda Miata 1.6L Single Valve Spring Kit

This shim kit contains .015", .030" and .060" thick Valve Spring Shims with 1.500" outside diameter and .645" inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat...

This shim kit contains .015", .030" and .060" thick Valve Spring Shims with 1.640" outside diameter and .635"-.650" inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat...

This shim kit contains .015", .030" and .060" thick Valve Spring Shims with 1.480" outside diameter and .765" inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat...

This shim kit contains .015", .030" and .060" thick Valve Spring Shims with 1.437" outside diameter and .645" inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat...