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Feuling Race Series Camshaft Kits for Milwaukee 8

Feuling Race Series Camshaft Kits for Milwaukee 8

This part is bike specific. It will not fit all makes / models / years.

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Product Overview

Include camshafts, lifters and a cam installation kit that includes the cam bearing, cam/crank hardware
Kit also includes gasket/O-ring kit that allows installation of Feuling Heavy-Duty HP+ .0165" wall one-piece pushrods or factory one-piece pushrods
Includes Race Series® lifters

465 CAM
Responds well when combined with increased engine bore and/or engine compression
Produces solid bottom-end performance and substantial gains above 2800 rpm compared to the stock cams
Use of performance valve springs is not required but may result in a quieter, smoother-running valve train
Direct bolt-in replacement for M-Eight engines; can be used with stock valve springs, pushrods, lifters and exhaust
RPM range 1850 - 5950
Will respond well when used with slip-on mufflers or a full exhaust system and a high-flow air cleaner

508 CAM
The Grim Reaper aggressive pulling power with a nasty sound
This camshaft revs up faster than the 521 grind, sounds nastier and pulls harder, but is more difficult to tune
The Reaper 508 grind will shine in 114” and larger cubic inch engines with added compression ratio
Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range
The stock throttle body produces an excellent powerband and use of a high flow throttle body will increase peak power numbers
A high-flow exhaust system and air cleaner is highly recommended for optimal performance
High-lift valve springs are required
Heavy-duty pushrods are highly recommended
250 - 6250 rpm range


521 CAM
A high-flow exhaust system and air cleaner is highly recommended for optimal performance
Feuling recommends matching 521 cam with Race Series oiling system PART #0797
High lift valve springs are required on stock cylinder heads; see Feuling Beehive valve spring kit PART #s 1107 or 1108
Heavy-duty one-piece pushrods are also highly recommended; see PART #4087
RPM range 2250 - 6250
Stock throttle body produces an excellent powerband; use of a high flow throttle body may increase peak power numbers
Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range
Aggressive pulling power with a "nasty" sound, the Reaper 521 grind will shine in 114" and larger cubic inch engines with added compression ratio

NOTE: Screamin' Eagle® cylinder heads have high lift valve springs and do accept the 521 grind cam.

NOTE: Due to the unstable nature of this 4-valve engine design with one rocker arm activating two valve springs, Feuling highly recommends running one-piece pushrods over quick-install adjustable pushrods to maintain maximum cam/valve lift and reduce valvetrain harmonics and associated hydraulic lifter issues.

NOTE: Feuling fastener kit PART #3047 also highly recommended to help prevent cylinder head cracking; kit replaces the rocker shaft bolts with studs and nuts to help reduce the stress of the rocker shaft standoffs.

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