⚙️ HP+® Oil System Packs for M8 deliver increased oil flow, pressure and cooling for M-Eight engines, improving reliability and performance.
- Includes a high‑flow billet camplate machined from 7075 aluminum that is stronger and harder than factory camplates.
- Enlarged oil pump reservoirs and matched passages increase oil flow to lifters, piston cooling jets, crankshaft and rod bearings.
- Pumps are bench tested with the relief valve seat and seal to a minimum of 30 psi and full pop off at 55–60 psi for consistent pressure control.
- Properly sized gears and passages increase oil volume and scavenge capacity, reducing wet sumping, blowby and oily air cleaners.
- Performance gains include cooler engine and oil temperatures, plus measurable rear‑wheel power and torque improvements.
- Kit includes high‑volume oil pump, high‑flow camplate, HP+® hydraulic roller lifters, cam installation kit, cam bearing, cam/crank bolts and washers, and assembly lube.
Optional ARP bolt kits are available; M-Eight engines must check clearance on the front exhaust lifter to camshaft flange fit. Made in the USA.