Comp Cams-4756 Valve Spring Shim Kit - 1.640" OD.635-.650" ID.015".030".060" Thickness

Comp Cams-4756 Valve Spring Shim Kit - 1.640" OD.635-.650" ID.015".030".060" Thickness

• Must-Have for Your Next Engine Build or Spring Upgrade - Production tolerances in cylinder heads, valve lengths, valve springs, retainers and locks can impact the valve spring installed height from valve to valve, greatly impacting spring seat and open pressures. COMP Cams spring shims are a must-have to ensure precise installed height on intake and exhaust valves.
• Guaranteed Precision - COMP Cams shims are crafted from the finest shim stock steel to precise dimensions, ensuring consistent installed height adjustments from the first valve to the last.
• Race Tough - COMP Cams valve spring shims are not only made from the highest quality shim stock available, they are also heat treated to withstand the most radical camshaft profiles.
• 1.640" Outside Diameter, 0.635-.650" Inside Diameter. Includes 16 0.015" Thick Shims and 16 0.030" Thick Shims (.635" ID) and 16 0.060" Thick Shims (.650" ID) .
• Recommended for use with our 998, 951, 991, 996, 946, 7245, 947, 948, 26082 and 26028 springs.
• Available Separately - 1.640" Outer Diamter spring shims are available in thickness specific sets of 16 and indivudally under part numbers 4740-16/-1 (.015"), 4746-16/-1 (.030"), 4752-16/-1 (.060").
• Made in USA

This shim kit contains .015 inch, .030 inch and .060 inch thick Valve Spring Shims with 1.640 inch outside diameter and .635 inch-.650 inch inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat treated to stand up to radical cam lobes. Kits are also available.