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The 351W’s oiling system is much better than that of its Cleveland counterpart, which is one of the reasons a Clevor is a best-of-both-worlds engine package. Naturally, our intent is to keep oil flowing smoothly throughout the engine, so Melling’s high-volume pump (PN 10833; $55.95) was chosen for the task. The stock-style pump features a larger inlet bore and hardened-steel gears, which help supply 25 percent additional oil flow. The pump’s drive and idler shafts also have been extended into the cover to provide extra support.