Seller notes

Selling Tomei Valve Spring Sheets for the Nissan RB Series Engine. When installing aftermarket valve springs in a head assembly, the amount of load applied to each spring needs to be adjusted until everything is in uniform specification. This is a standard procedure which all race engines go through in order to be able to raise the engine RPM without any glitches or hesitation. The standard method involved when putting together the valve assembly is to fully balance all the added components to t...

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