High-Performance Cam Shafts
DME camshafts are designed using three decades of Dyno testing, racing, touring, street rodding, and research with cams of all major manufacturers. Our familiarity
DME Cams
with the pros and cons of nearly every cam on the market, along with our vast experience with different cylinder head characteristics, have given us a unique insight into what the Harley-Davidson engine needs to accomplish the goals of the customer. Every goal is different, and every combination of carburetion, ignition, exhaust pipes, gearing, vehicle/rider weight, altitude etc. is different. We have the knowledge and experience to recommend the "just right" camshaft for you. Keep in mind that we sell all major brands of camshafts, and if we feel that one of them is better for your application we will recommend it to you. Our goal is to provide you with the best performance possible.

Dave Mackie Twin Cam Camsets
The field testing is complete and the Dyno results are in. The tradition continues with DME offering the most exciting cam sets available for the new twin cam motors. With the right combinations, horsepower and torque figures can routinely go over the 100 mark.

* TC510 and TC590 Camsets are available for both chain and gear drive. TC640 is gear drive only. *

TIMING @ .053 VALVE LIFT
PART # EVENT OPENS CLOSES TOTAL TDC DURATION CENTERLINE a
TC510 & TC510G INTAKE 22 38 .510 .194 240° 98° Bolt-In. Excellent overall powerband. Stock springs OK. The strongest bolt-in twin cam available.
EXHAUST 52 12 .510 .138 244° 110°
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TC590 & TC590G INTAKE 26 42 .590 .231 248° 98° Based on the incredible DM580, this cam set will transform an 88 or 95-inch twin cam motor into an animal all throughout the powerband. No case mods necessary. High performance springs required.
EXHAUST 56 12 .590 .143 248° 112°
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TC598G
NEW! 		INTAKE 24 50 .598 .213 254° 103° Excellent for 95" engines with 10.25+ compression. Very strong overall powerband. Pulls hard throughout. High performance springs required.
EXHAUST 56 20 .598 .179 256° 108°
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TC630G
NEW! 		INTAKE 24 58 .630 .217 262° 107° High lift version of the incredible TC590. Best choice for big inch and/or high compression 95". Excellent overall powerband. High performance springs required.
EXHAUST 60 22 .630 .198 262° 109°

Dave Mackie Evolution Camshafts
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TIMING @ .053 VALVE LIFT
PART # EVENT OPENS CLOSES TOTAL TDC DURATION CENTERLINE a
DM500 INTAKE 22 38 .500 .189 240° 98° Bolt-In. Excellent low and mid range torque and great horsepower makes for the strongest overall powerband of any bolt-in cam available. Stock springs OK.
EXHAUST 52 12 .500 .138 244° 110°
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DM530 INTAKE 28 42 .530 .221 250° 97° An excellent cam for modified 80 and 88-inchers and small strokers. Unusually strong in the low and mid range, this cam will also pull to 6000+. High performance springs recommended.
EXHAUST 55 15 .530 .141 250° 110°
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DM580 INTAKE 26 42 .580 .227 248° 98° This cam is already a legend. Incredible torque and horsepower bands. Hot 80-inchers to 100+ inch. Pulls like a freight train from idle to 6000+. High performance springs recommended.
EXHAUST 56 12 .580 .144 248° 112°
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DM581
Multi
Index		 INTAKE 26 42 .581 .218 248° 98° Same characteristics as DM580 with a multi-index gear for greater turning flexibility by allowing changes to the power band.
EXHAUST 56 12 .581 .136 248° 112°
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DM595 INTAKE 21 49 .595 .192 250° 104° Another awesome cam that provides the same kind of incredible overall powerband as the DM580 but can be used in even larger motors, and with higher compression. High performance springs recommended.
EXHAUST 57 14 .595 .150 251° 111.5°
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DM635 INTAKE 20 56 .635 .194 256° 108° Big brother to the legendary DM580. This cam gives the best overall power band in its class. Pulls hard all the way through. High performance springs recommended.
EXHAUST 59 18 .635 .176 257° 110.5°

New! Dave Mackie Shovelhead Camshafts
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TIMING @ .053 VALVE LIFT
PART # EVENT OPENS CLOSES TOTAL TDC DURATION CENTERLINE a
DMS500 INTAKE 24 42 .500 .185 246° 99° Most Shovelhead cams on the market were designed many years ago using the knowledge and technology of the times. DME shovelhead cams are based on many years of experience along with today's knowledge and technology. They produce and excellent overall powerband and can update your Shovel to modern standards.
EXHAUST 54 16 .500 .139 250° 109°
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DMS530 INTAKE 26 42 .530 .199 248° 98°
EXHAUST 56 12 .530 .123 248° 123°

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