The Short Sump Plug eliminates blockage of the internal engine case scavenge pickup hole, improving oil scavenge efficiency. 🔧
It keeps the cross-sump port wide open so the oil pump can pull as much oil as possible from the sump.
The fuel plug is 0.265" tall versus the OEM 0.465", reducing interference risk with internal ports.
The M8 main sump cross port location and height can vary between engine cases because factory machining creates the port; this contrasts with the Twin Cam cross scavenge pickup bore, which is machined and consistent across cases.
Made in the USA. 🇺🇸