Product Description
.030" Valve Spring Shims for LS Heads with Stock Guides
Pack of 16 Shims
These shims are .030" thick with a .510" inside diameter and 1.260" outside diameter.
Commonly used for setting installed height with dual valve spring kits.
Will not work with larger diameter bronze guides.
A 2-piece valve spring locator seat and seal setup must be used with these shims. These shims should not be used under 1-piece "tophat" style seals with the integrated spring seat.
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Valve spring shims
Worked perfectly for my Ls3 swap
