Description & Size Guide
.508" intake valve lift, .511" exhaust valve lift. - Intake open/close: 20.5/37 - Exhaust open/close: 44/17.5 - Duration in/ex: 237/241.5 - Valve lift in/ex: .508"/.511" - Valve lift TDC: .180"/.98.5" - Overlap 38. Bolt-in but requires high lift springs. RPM range 2.250-5.900. 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. This 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. Note: Requires high lift on stock cylinder heads. Note: Compatible with SE heads since these are equipped with high lift springs as standard. Note: Cam specs measured in the engine on the lifter @ 0.050 using the standard 1.61 rocker arm ratio.
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