Kelford KVS63-BTK High Pressure Beehive Springs & Titanium Retainer Kit Evo 4-9
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MITSUBISHI 4G63 DOHC EVO 1-9. High Performance PACALOY Beehive spring and Titanium retainer set.
Suits high RPM, high boost competition engines. Install at 90lb. Maximum valve lift is 13.50mm