Feuling Motor Company Feuling 521 Race Series Cam And Lifter Kits

521 Cam has aggressive pulling power with a nasty sound, the Reaper 521 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. Feuling recommends matching this cam with our Race Series oiling system. RPM range 2,250-6,250.

• Camshaft kits include Reaper camshaft, Race Series lifters, and a cam installation kit that includes cam bearing, cam/crank hardware and a gasket/O-ring kit that allows for install of the factory one piece pushrods and or our optional and recommended heavy duty one piece pushrods.

• Race Series hydraulic lifters have a full .200 of total travel designed with a slower bleed down rate to handle heavy valve spring pressures, increase engine RPM before valve float and feature increased roller clearance for steep ramped camshafts and clearance for the Milwaukee Eight front exhaust camshaft lobe flange

Grind: 521 Series

• Intake Lift .518″

• Exhaust Lift .521″

Note: Feuling fastener kit is also highly recommended to help prevent cylinder head cracking, this kit replaces the rocker shaft bolts with studs and nuts to help reduce the stress on the rocker shaft standoffs. Feuling also recommends running one-piece pushrods over quick install adjustable pushrods to maintain maximum cam lift and reduce valve train harmonics.