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Welcome to Head Quarters.

Quality..........Performance..........Durability

Over 8,000 sets of heads shipped to satisfied customers since we started keeping computer records in 1987. Time proven.

The page buttons at left will guide you through all the parts and or services we currently offer.

TC chamber color
exhaust port color
intake port color

Head work starts at $987.49 US per set as shown above with all new parts and labor.

Scroll all the way down the page for a great testimonial

in port1
head ex port1
113andxrst160
HQ build kit
tour-vj1 hone-full top shot

I thought that you might be entertained by this. My heads are marked HQ5991. My odometer reads just over 110,000 miles. Attached is a dyno sheet after I did some modifications to the Thunderheader. I think that my bike is a good testimony to the life expectancy of your products. Would you like pics of the combustion chambers or anything else when I tear it down? If you notice the dyno sheet, it only had 105,000 at the time. Feel free to post it if you would like. For the record, they have not all been easy miles. I'm the old motocrosser that you spoke with 5 or so years ago.
Randy Holm

Randy Holm New

Harley-Davidson performance, Harley-Davidson specialist, Harley-Davidson cams, Harley-Davidson camshaft, Harley-Davidson performance parts, Harley-Davidson head work, Harley-Davidson ported heads, Harley-Davidson flowed heads,
porting, valves, andrews cams, S&S cycle, Revolution Performance, big bore cylinders,  woods cams, porting, Harley-Davidson performance ignition, big bore kit, 113, 120, 107, 103, 95, valve guides, valve springs, valve guide seals