R/C Tech Forums - View Single Post - Will I need head shims on OS V-SPEC if running 30% Nitro
Old 06-28-2007, 09:06 AM
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SkarTisu
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Use the extra shim for break-in to make life a little easier for the conn rod, then take the shim out after you're done. No shim needed for 30% after break-in.
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