Weba high-volume oil pump to offset these shortcomings and help the main bearings get more oil to survive. Dart aftermarket blocks have been designed with a less restrictive oil system which feeds oil to the main bearings first; a “priority main” oiling system. Many of us in this industry are inclined to use a high-volume oil pump due to history. WebBig M Cam Bore & Fuel Pump Boss. Big M blocks come with standard Mark IV style front fuel pump boss and traditional front mounting bosses. Both 9.8-inch stock deck blocks and tall deck 10.2-inch blocks have standard height cam placement. All blocks feature priority main oil circuits. Dart Big M Block ¾ Front View.

Little M block - Topic

WebMost OEM and aftermarket race cylinder blocks are configured for priority main oiling to protect the main bearings at high RPM. This oiling strategy gives priority to directly oiling the main bearings first. Pressurized oil … http://www.msprodimages.com/PDFCatalogs/TechSheets/ALL_Allstar/ALL90072-73_Dart_Chevy_SHP_Oil_Restrictors.pdf installed water filter system

Little M Blocks - Dart Machinery

WebAug 3, 2009 · Engine Tech - dart little M oil restrickers? - just had major problem (#4 rod though oilpan) engine bluilder didnot restrick oil in my 434. motor had 18 runs. all good parts. coated bearings. pretty much said it was my fault for not hearing a noise the run before. the two time runs that morning 9.103 and 9.100 @ 147.... WebFEATURES • Priority main oiling system. • Siamese cylinder bores with extra thick walls. • Optional full water jacketed non-siamese cylinder bores. • Extra thick decks ensure reliable head gasket seal. • Blind head bolt holes don’t go through to water jacket. • Scalloped water jacket walls improve flow around cylinders for better cooling. WebAbove: The foundation for this power player is a fully prepped Dart “Little-M” cylinder block which comes with all the important performance enhancements like 4-bolt steel main caps with premium ARP fasteners and priority main oiling passages. jfkdn.sewvg.com