Feuling Reaper Race Series 521 cam kit

Note: Special Order Product only. To order please contact your MCS sales representative. Chain drive. This Feuling M8 camshaft kit includes chain drive 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. Feuling recommends the optional 993528 Feuling one-piece heavy duty HP+ pushrod kit, with 0.165" wall thickness. Feuling rocker box fastener kit 707450 is also highly recommend 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. 521 CAM - 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 their RACE SERIES oiling system. NOTE: High Lift valve springs are required on stock cylinder heads, see FEULING BEEHIVE valve spring kit 993530. SE cylinder heads have high lift valve springs and will accept the 521 grind cam. Heavy Duty one piece pushrods are also highly recommended see 993528. Kit includes 993552 521 camshaft only. RPM range 2,250 - 6,250. Valve Lift Open Close Duration @ 50" lift @ TDC Lobe Centerline Intake .518 17 BTDC 34 ABDC 231 .162 98.5 Exhaust .521 51.5 BBDC 11.5 ATDC 243 .125 110 Overlap: 28.5 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 M8 front exhaust camshaft lobe flange. *Cam specs measured on the lifter @ 0.050" lift with 1.61 rocker arm ratio DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VECHICLE Feuling does not recommend tuning beyond stock emissions standards.

• Category: Cams
• Manufacturer part number: 1456

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