

Race Series "Oil Cooled Full Travel" Camchest Kits / M8 Motors
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The Feuling Race Series Oil Cooled Full Travel Camchest Kit covers oil cooled M8 motors with full travel lifters and the widest cam range in the Race Series line.
No Shipping to California.
For oil cooled motors only.
Full travel lifters are the forgiving choice, and the cam list reflects that. Where the short travel kit starts at 508, this one opens at 465 and 472, grinds mild enough for a bike that still has to commute. That makes this the Race Series kit for a build where the oiling system is the upgrade and the cam is a moderate step rather than the point of the exercise.
What Makes This a Race Series Kit
The oiling package is identical to the rest of the Race Series: a billet 7075 aluminum oil pump 50 percent harder than the factory unit, a High Flow billet 7075 camplate, and scavenge kidney ports cut deeper than the HP+ series. What changes here is the lifter, running full .200" travel with a slower bleed-down rate, which handles heavy spring pressure while staying more tolerant of a stock-adjacent valvetrain.
Race Series Oil Cooled Full Travel Specifications
- For oil cooled M8 motors only
- Full travel hydraulic roller lifters
- Cam options: 465, 472, 508, 521, 538 or 592
- Billet 7075 aluminum Race Series oil pump
- High Flow billet 7075 aluminum camplate
- Fixed length pushrods, Timken and Koyo cam bearings
- 27% more pressure and scavenge gear volume over stock on oil cooled M8
- 68% more oil volume to the crankshaft and connecting rod bearings
- 15 to 25 degrees cooler engine temperature
- 15 to 30 degrees cooler oil temperature
- 10 to 30 more psi of oil pressure
- Roughly 50% reduction in engine sump oil level
- Feuling testing shows 2 hp and 2 ft-lbs gained at the rear wheel
- Magnets in oil pump to protect gears and pressure relief valve
- Made in the USA
Required Valve Springs
508, 521 and 538 kits REQUIRE high lift valve springs, part 9262973 or 9262974. 592 kits REQUIRE high lift and load valve springs, part 9263138. These are not included and are not optional.
The 465 and 472 cams do not carry the same spring requirement. ⚠️ VERIFY your cooling type and cam choice before ordering.
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