Page 3 of Oiling Sysyems by Parts Pro

high performance 2006 parts pro master catalog melling melling has been at the heart of the automotive industry since making its first oil pump in 1947 superb technology is just one of the reasons melling has succeeded through the decades that technology lives on today thru the m select line of high performance oil pumps and components stock high volume oil pumps sb chrysler 273-360 stock replacement oil pump high volume oil pump m72 m72hv ford 351c 351m-400 stock replacement oil pump m84a high volume oil pump m84ahv sb chrysler 383-440 stock replacement oil pump high volume oil pump m63 m63hv ford 390 high volume oil pump m57hv m select pumps start with a stronger housing to withstand additional vibration and load then adds higher performance components for increased output pressure or volume melling m select pumps are the premium choice for high performance oiling systems sb ford 289-302 stock replacement oil pump high volume oil pump high pressure oil pump m68 m68hv m68a ford 429-460 stock replacement oil pump m84 high volume oil pump m84bhvs pontiac 326-455 stock replacement oil pump m54ds sb ford 5.0l 351w stock replacement oil pump high volume oil pump m83 m83hv features found in m select oil pumps · all m select pumps are mag-phos coated provides surface lubricity for wear and rust protection · all m select pumps feature steel billet gears stock pumps use press powder gears · pinned drive gear stock pump gears are only pressed · shaft support keeps gears perpendicular by preventing shaft defection at higher rpm s · screw-in valve plug stock plugs are pressed in bolt-on screens for m select pumps fits stock 7 deep pan fits stock 8 deep pan 12557 12559 sb chevy 283-400 melling stock replacement oil pump high volume oil pump high pressure/high volume high pressure/high volume m55 m55hv m55a m99hvs requires 3/4 pickup tube m select pumps volume increase 25 25 inlet diameter 5/8 stock fl steel gears yes yes pinned drive gear x x shaft support x screw-in plug x x inter shaft supplied 10550 10555 when do i need a high volume pump most of the stock automobile engines are designed to operate from idle to 4500 rpm the original volume and pressure oil pump will work fine in this type of application as the demands on the engine increase so does the demands on the oiling system and pump high volume pumps are never a solution for a worn engine but are called for in specific engine usages the oil pump s most difficult task is to supply oil to the connecting rod bearing that is the farthest from the pump to reach this bearing the oil travels from three to four feet turns numerous square corners thru small holes in the crankshaft to the rod bearing the rod bearing is traveling in a circle which means centrifugal force is pulling the oil out of the bearing therefore bearings gain the most from high volume pumps increases in the engine s oil requirements come from · higher rpm · being able to rev faster · increased bearing clearances · remote oil cooler and/or filter · and any combination of these if a pump is not large enough to meet the demands of the engine there will not be any pressure or if the demands of the engine are increased beyond the pumps capabilities there will be a loss of oil pressure this is where high volume pumps come in they take care of any increased demands of the engine chevy ls1 4.8/5.3/6.0l stock replacement oil pump m295 bb chevy 396-454 stock replacement oil pump high volume oil pump m77 m77hv m select pumps volume increase 25 25 inlet dia fl fl steel gears yes yes shaft screw-in inter shaft support plug supplied xxxxxx anti-cavitation grooves 10777 x 10778c sb ford 260 289 302 m select pump 25 more volume high rpm shaft supports 10688 ford 4.6l sohc m select pump high volume pump and screen for higher rpm engines 10689 96 some parts are not legal for sale or use in california on any pollution controlled motor vehicle.

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