Camshaft kit - 472 chain-driven HP+ M8

Includes Reaper® camshafts, HP+® tappets and installation kit with cam bearing and fittings.
The kit also includes a set of gaskets/O-rings for fitting single-piece Feuling Heavy-Duty HP+ rods with a wall thickness of .0165" or original single-piece rods.
Manufactured in the USA
Due to the unstable nature of this 4-valve engine design, with one rocker actuating two valve springs, Feuling strongly recommends using one-piece pushrods instead of quick-install adjustable ones to maintain maximum cam/valve lift and reduce valvetrain chatter and associated issues with hydraulic lifters.
Camshaft specifications measured at the tappet @ 0.050" lift with a 1.61 rocker arm ratio.
Not suitable for '23-'24 models with 121" VVT engines.
High-performance valve springs are not required, but they can provide a quieter and smoother valve train; the Feuling fixing kit is recommended to prevent cylinder head cracking.
Includes:
• Reaper Series 472 camshaft
• HP+ Series studs
• Camshaft installation kit



Specifications


Brand
FEULING PARTS


Supplier reference
1450


Application
Exhaust, Intake


Intake cam centre
98,5°


Exhaust cam centre
111,5°


Intake closure
25°


Exhaust Clamp
7,75°


Intake duration
213°


Exhaust duration
238°


Intake valve lift
0,468"


Intake valve lift at TDC
0,117"


Exhaust valve lift
0,472"


Exhaust valve lift at TDC
0,110"


Model
HP+®


Product name
Camshaft Kit


Type
Chain


Units
Kit


Open intake valve
8°


Open Exhaust Valve
50,7°


Version
472 Series