538 CAM - Aggressive camshaft with a nasty sound. This camshaft revs up fast and pulls hard in engines with big bore cylinders, modified cylinder heads, inake, compression and exhaust. The REAPER 538 grind will shine in 124 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.

NOTE: High Lift valve springs are required on stock cylinder heads, see FEULING BEEHIVE valve spring kit #1107 (DRAG# 0926-2973) or #1108 (DRAG# 0926-2974). SE cylinder heads have high lift valvesprings but will need to be verified. Heavy Duty one piece pushrods are also highly recommended see #4087.


Part # 1351 RPM range 2,350 - 5,975. Grind: 538

..................Valve Lift Open Close Duration @ 50 lift @ TDC Lobe Centerline
Intake .538 20.5 BTDC 38.5 ABDC 239 .180 99
Exhaust .542 48 BBDC 18 ATDC 246 .157 105
Overlap: 38

*Cam specs measured in the engine on the lifter @ 0.050 using a 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.