![4G63 DOHC Premium Beehive Springs | Titanium Retainers KVS63-BTK-X](http://770motorsports.com/cdn/shop/products/KVS63-BTK-X_940x587.jpg?v=1695885565)
4G63 DOHC Premium Beehive Springs | Titanium Retainers KVS63-BTK-X
Install at 90lb seat pressure. Maximum valve lift 13.50mm. - 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 seat pressure. Maximum valve lift 13.50mm.