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Part number: 4754
Product Details
Comp Cams 4754 Valve Spring Shim Kits 0.015 in./.030 in./.060 in. Thickness
Products specifications
Hardened Yes
Inside Diameter (in) 0.645 in.
Outside Diameter (in) 1.437 in.
Quantity Sold as a kit.
Quantity of .015 inch Thick Shims 16
Quantity of .030 inch Thick Shims 16
Quantity of .060 inch Thick Shims 16
Quantity of 015 in Thick Shims 16
Quantity of 030 in Thick Shims 16
Quantity of 060 in Thick Shims 16
Title 4754 Spring Shim Kit, 1.437
Diameter Outside (in.) 1.437

As with all other parts in the valvetrain the area where the spring sits takes a beating. The old standard shims and/or seats simply will not hold up to the extreme pressures and high rpms found in todays performance engines. Comp Cams off

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