Maximize the performance of your 5.7L/350 Marine Gen I SBC 1pc RMS with the Enginetech RMM350AP Premium Re-Ring Kit. This premium kit delivers top-tier components for a reliable engine overhaul. Includes premium piston rings (M40058), rod bearings (BB253J), main bearings (BC296J), and full gasket set (M350L-A). 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.