Home

Latest update May 7/08

You’ve come to the right place.

There is no substitute for craftsmanship. Click any photo for a larger view.

883 exhaust port

883 intake port

All HD heads

Twin Cam exhaust port

0

1

2

3

Twin Cam intake port

Twin Cam chamber

Compression release hole

Our Cylinder Finish

4

5

6

7

Welcome to the HQ web site. Before browsing through our pages, it might interest you to know our main focus has always been on torque and not horsepower. It has always been our intentions to offer kits and components that provide high torque values and longevity. Drag racing is of no interest to us at all. Our customer base is made up of individuals that enjoy touring and street riding.

You will often hear or read about bottom, mid-range and top end power. Most Harleys idle around 1,000 RPM and after releasing the clutch nobody ever finds themselves riding below 1,500 RPM. Hot rodded street Harleys stop making power at 6,000 RPM, so we have an operating range of 4,500 RPM. We can break this down to bottom being 1,500 to 3.000 RPM, mid-range being 3,000 to 4,500 RPM and top end being 4,500 to 6,000 RPM.

If you watch your tachometers while riding, you will have to agree that most street riding is done between 2,000 and 3,500 RPM with semi aggressive shifting done in the 4 to 5,000 RPM range. It is for these reasons that we prefer high torque to high horsepower. Torque is built in the low and mid-range, while horsepower is produced in the top end range. We prefer not to compromise torque for horsepower.

When it comes right down to it, we are trying to make your bike feel like a small car powered by a big block motor. If Harley riders wanted horsepower instead of torque, we believe they would have purchased Japanese motorcycles.

Despite our main focus being on torque, Head Quarters has always enjoyed a reputation for producing quick and fast engine packages. To quote an old drag racer ‘horsepower sells, torque wins races’. We tend to agree.

After you have a look through our pages here, you may want to view our US Retail web site where you can build a virtual Head Quarters combination and even price it out. Pricing is currently only available in US dollars at the retail level, so it will not apply to any of our dealers or Canadian customers.
US retail customers only. Left Click this link -> Head Quarters USA

Kevin Baxter of Atlanta says it like we would like to say it.

(copied from a message board)    Thank you Kevin!

Hello All,

I'm proud to say I just completed a build from HQ with outstanding results. From the components below and with a great deal of SERT tuning, i've acheived an average of 115 hp/117 torque.

I see quite a few messages come thru this board in regards to expectations and results from HQ products. No offense intended to those posting the questions, but if I may, I'd like to offer my
perspective as a well educated customer.

I've been designing and building engines for years and I have to say, HQ heads have some of the best porting work I've ever seen. The cam grinds are dead on to the physics and properties of an HD engine, and
I'm sure everyone that orders gets the same quality and consistancy. To read that some get 90 hp and others get 110hp from the same build isnt due to unfounded promises from HQ or poor products. If you aren't getting very close to or over the hp/tq numbers estimated for your build by HQ, then the problem is with the person tuning your bike.

Quite honestly, I performed a dyno run before I started tuning mine and got 80hp/85tq. I spent a few hours re-designing the map, ran the dyno again and got 90hp/100tq. After another day of tuning, 107hp/110. And then another afternoon and got to the 115hp/117tq average with approx 45 mpg, zero pinging, and cool head temps....ANDI HAVEN'T EXCEEDED THE 5500 RPM REDLINE YET! (45mpg because im on the rich side to keep the heads a bit cooler and to produce maximum torque - 13.5(6):1 A/F)

All that being said, if your tuner has your bike for 2-3 hours and hands it back to you, you aren't getting value for your dollar...to properly tune and ensure maximum output, takes HOURS and HOURS (I have about 10 hours in mine and I'm still not finished); pushing the envelope and adjusting in all directions to get peak perf. Educate
yourselves and please, don't assume that just because the guy is running your dyno, that he really understands how his adjustments affect your engine. Ask questions and demand the outcome. No canned maps folks..if you pay for a "custom dyno tune", you should get one.

Just food for thought from a very satisfied customer.

Kevin

06 FLHTCI
95" with Weisco 10.5:1 pistons
HQ0039 Cam
HD Ported heads
 

 

Here is what a Head Quarters 95” Twin Cam motor at 10.5:1 with HQ-0039 cam looks like when properly tuned. Kevin says the clutch was slipping a bit on the dyno. Watch for a better 5500-6000 RPM result after he changes to a heavy duty spring. Stay tuned.

**Note that this bike has stock bagger head pipes which restrict top end power. A good two into one pipe could produce 10% more power.**

Here is one we are proud of. Phil McKinney of Texas makes some impressive power with Head Quarters heads and a 98” Rev Perf cylinder kit at 10:1 using our HQ-0039 cams. You can read more about Phil’s job in our TESTIMONIALS section.

I thought you might like to see what we got when we installed your HQ-34 cam in an 06 FLHTCU. SE a/c, stock 88" motor, HQ-34 cams, Rinehart Tru-Duals, and an advanced map USBPC tune. Pretty good cam you got there.

Jason Clement

Ray Price High Performance

 
[Home] [What's New] [Head Work Ect.] [HQ Products] [Big Bore Kits] [CP Pistons] [Ebay Store] [Dyno Room] [Tech Sheets] [Contact] [Shipping Address] [HQ Facts] [Testimonials] [Q&A Group] [Home Page Pics]