Feuling Motor Company Feuling 508 Camshaft

The 508 Grim Reaper offers 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. Feuling recommends matching this cam with the race series oiling system. High lift valve springs are required and heavy-duty pushrods are highly recommended.

• Aggressive puller, optimized for 114″ or larger motors

• Provides power increase across entire

• Responds well to modified cylinder heads, increased compression ratio, performance e exhaust and intake systems

• High lift valve springs required

• High performance pushrods and lifters recommended

508 Cam Information:

• 2250-5900 rpm power range

• Must be used with high lift valve springs

• Intake open/close 20.5°/37°

• Exhaust open/close 44°/17.5°

• Intake duration 237°

• Exhaust duration 241.5°

• Intake lift at TDC .180°

• Exhaust lift at TDC.146°

• Intake lobe centerline .98.5°

• Exhaust lobe centerline .103.25°

• Intake Lift .508″

• Exhaust Lift .511″