Revive the performance of your Chevrolet 63-67 3.8L/230 and 66-68 4.1L/250 with the Enginetech RMC250A Re-Ring Kit. This kit delivers high-quality components for a reliable engine overhaul. Includes cast piston rings (R38856), rod bearings (BB185J), main bearings (BC298J), and full gasket set (C250-15). Free shipping included. Note: Kit photo is generic; actual parts shown individually. Rod and Main bearings are offered as the same size. Contact us for different sizes.