OS .21 VZ-B V-Spec competition buggy engines. This set includes four 2.6 x 17mm socket head screws (head screws) and four 2.6 x 7mm socket head screws (backplate screws). This product was ...
nbsp; These shims go between the head button and the top of the cylinder sleeve and can be used to adjust and fine tune the compression (deck height) of the engine. In general ...