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CAMSHAFT RANGE & SELECTION CHART<br />
SEE INDIVIDUAL LISTINGS FOR MORE INFORMATION<br />
NEED A GOOD TORQUE CAM?<br />
LOOK FOR THIS ICON IN THE LISTINGS<br />
STAGE 1<br />
DURATION @ .050’’:<br />
UP TO 200 HYDRAULIC<br />
CHARACTERISTICS<br />
IDLE QUALITY:<br />
TORQUE:<br />
FUEL ECONOMY:<br />
SMOOTH STOCK<br />
IMPROVED LOW END,<br />
1600-2000 RPM<br />
VERY GOOD<br />
RECOMMENDATIONS<br />
TOWING:<br />
RACING:<br />
COMPUTER<br />
CONTROLLED<br />
VEHICLES:<br />
TRANSMISSION:<br />
COMPRESSION<br />
RATIO:<br />
GOOD FOR PULLING HEAVY LOADS<br />
NOT RECOMMENDED<br />
MODIFICATIONS NOT NEEDED<br />
STOCK AUTOMATIC OR MANUAL<br />
9.0:1 OR LESS<br />
STAGE 2<br />
DURATION @ .050’’:<br />
200-215 HYDRAULIC<br />
STAGE 3<br />
DURATION @ .050’’:<br />
210-225 HYDRAULIC<br />
STAGE 4<br />
DURATION @ .050’’:<br />
225-240 HYDRAULIC<br />
STAGE 5<br />
DURATION @ .050’’:<br />
240-255 HYDRAULIC<br />
250-265 MECHANICAL<br />
CHARACTERISTICS<br />
IDLE QUALITY:<br />
TORQUE:<br />
FUEL ECONOMY:<br />
SMOOTH<br />
GOOD LOW AND MID-RANGES<br />
1800-2600 RPM<br />
GOOD<br />
CHARACTERISTICS<br />
IDLE QUALITY: FAIR WITH SOME LOPE<br />
TORQUE: MID-RANGE 2400-3200 RPM<br />
FUEL ECONOMY: FAIR<br />
CHARACTERISTICS<br />
IDLE QUALITY:<br />
TORQUE:<br />
FUEL ECONOMY:<br />
CHARACTERISTICS<br />
IDLE QUALITY:<br />
TORQUE:<br />
FUEL ECONOMY:<br />
ROUGH. MANIFOLD VACUUM<br />
WILL NOT OPERATE POWER<br />
BRAKES<br />
MID-RANGE 3000-4000 RPM<br />
POOR<br />
ROUGH WITH HEAVY LOPE.<br />
WILL NOT OPERATE POWER<br />
BRAKES<br />
MID TO HIGH RANGES<br />
3800-5000 RPM<br />
POOR<br />
RECOMMENDATIONS<br />
TOWING:<br />
RACING:<br />
COMPUTER<br />
CONTROLLED<br />
VEHICLES:<br />
TRANSMISSION:<br />
COMPRESSION<br />
RATIO<br />
RECOMMENDATIONS<br />
GOOD FOR LIGHT PULLING AND RV USE<br />
NOT RECOMMENDED<br />
MODIFICATIONS MAY BE NEEDED<br />
STOCK AUTOMATIC OR MANUAL<br />
9.5:1 OR LESSSR<br />
TOWING: NOT RECOMMENDED<br />
RACING: MILD BRACKET RACING<br />
COMPUTER MODIFIED COMPUTER CHIP MAY BE REQUIRED TO<br />
CONTROLLED COMPENSATE FOR LOW VACUUM<br />
VEHICLES:<br />
TRANSMISSION: STOCK AUTOMATIC OR MANUAL<br />
COMPRESSION 10.3:1 OR LESS. CHECK VALVE TO PISTON CLEARANCE<br />
RATIO:<br />
RECOMMENDATIONS<br />
TOWING:<br />
RACING:<br />
COMPUTER<br />
CONTROLLED<br />
VEHICLES:<br />
TRANSMISSION:<br />
COMPRESSION<br />
RATIO:<br />
RECOMMENDATIONS<br />
TOWING:<br />
RACING:<br />
COMPUTER<br />
CONTROLLED<br />
VEHICLES:<br />
TRANSMISSION:<br />
COMPRESSION<br />
RATIO:<br />
NOT RECOMMENDED<br />
BRACKET DRAG RACING, LIMITED OVAL TRACK<br />
NOT RECOMMENDED<br />
AUTOMATIC WITH HIGH STALL CONVERTER OR MANUAL<br />
10.5:1 TO 11.0:1. CHECK VALVE TO PISTON CLEARANCE<br />
NOT RECOMMENDED<br />
BRACKET DRAG RACING, OVAL TRACK<br />
NOT RECOMMENDED<br />
AUTOMATIC WITH HIGH STALL CONVERTER OR<br />
HEAVY DUTY MANUAL<br />
10.5:1 TO 12.0:1. CHECK VALVE TO PISTON CLEARANCE<br />
THESE ARE GENERAL GUIDELINES. TO ACHIEVE BEST PERFORMANCE, MATCH CARBURETION, INTAKE MANIFOLD, IGNITION AND HEADERS TO THE CAMSHAFT.<br />
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