CYLINDER HEAD SPACER SHIMS

Cylinder Head Spacer Shims help restore the valve train geometry, valve clearance, compression ratio and cam timing to factory specifications on engines where the cylinder head and/or block surfaces have been resurfaced below factory limits.

Shims from Innovative Machine & Supply are precision cut from 0.020" cold rolled steel. Shims are individually produced using a CNC laser. This eliminates the rolled edge present on shims that are manufactured using a punch press.

Many cylinder heads are so severely warped or damaged and sometimes, a 0.020" shim is not enough to restore factory specs. Innovative Machine & Supply is the only shim manufacturer to offer shims in other thicknesses. We have the most popular cylinder head spacer shims in 0.030" and 0.040" and a few numbers in 0.060". If you need a thicker shim than we offer, be sure to ask - we probably have it.

Shims from Innovative Machine & Supply are made from steel for several important reasons:

1) Steel has a higher heat tolerance than copper, the material used for some other cylinder head shims. In hotter running late model engines, heat resistance is very important to insure the integrity of the shim. Steel is superior for this environment.

2) Steel cylinder head shims have a hardness factor similar to that of the block. This allows the gasket fire ring to properly "crush" as the head is torqued to spec.

3) Steel shims are less likely to be damaged in shipping and from mishandling or mishaps in the shop.

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