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Custom Headwork for High-Performance Harley-Davidsons
Dave Mackie Engineering provides the finest custom, high-performance headwork available for the Harley-Davidson enthusiast today! Maximum airflow coupled with the highest possible intake velocity means horsepower for street or strip applications. With efficient airflow and sustained intake velocity a "ram" effect is created, significantly enhancing the breathing of Harley-Davidson cylinder heads, particularly Evolution and Twin-Cam models. Dave Mackie Engineering is now occupying a new, larger facility with state-of-the-art tooling, CNC machinery, and computer systems to enhance production and customer satisfaction!

Dave Mackie Engineering cylinder heads were utilized on Easyrider Magazine's Harley-Davidson powered Streamliner when it attained the title, "World's Fastest Motorcycle" by travelling at 322 MPH at the Bonneville Salt Flats, and it is still the World’s fastest Harley Davidson.

Dave Mackie Engineering headwork was a key component of Bob "Rat" Taft's motorcycle when it became the world's "First 8-second Harley-Davidson Motorcycle" powered by gasoline.

Dave Mackie Engineering headwork also has helped win several Sturgis "King of the Hill" dynamometer competitions.

Whether you want more power for cruising/touring, hot street performance, or all-out drag racing, think Dave Mackie for all your cylinder head modification needs! Ask about the Dave Mackie Engineering exchange program.

Just who is Dave Mackie?
Between 1978 and 1984, Dave Mackie set over 60 National Records and was five-time
Dave Mackie: Drag Racer
National Champion in some very tough competitive classes, racing against all comers. Dave Mackie is the only man in DRAGBIKE® history to deliver the Stock Eliminator Championship to Harley-Davidson, and was the first man into the 10's with a stock displacement engine.

Dave credits his long association with Rivera/Primo with a lot of his success. He used an Eliminator SU carburetor, and a Primo belt drive during his racing career.

Since the early eighties Dave has been performing custom porting and polishing on Harley heads. Rivera Engineering highly recommends Dave Mackie and his services.

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Some parts and services may not be legal on 1978 and later emission-controlled vehicles. Check your local, state and federal laws.*
*Dave Mackie Engineering high-performance headwork and camshafts are not legal in the state of California for use on 1978 and later emission-controlled vehicles.