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At Dan Vance Racing we offer custom high performance cylinder head and engine modifications for Harley Davidson motorcyles. We have performance kits for every riding style. We can provide torque and horsepower increases in any or all RPM ranges. 


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This is for work on your parts. You send me your heads & cylinders and I will port the heads and bore & hone the cylinders. I will send the completed parts back along with the parts listed below.

                                   THIS KIT INCLUDES MY "RAISED PORT" HEADS SERVICE,

                                      CYLINDERS BORED/HONED W/ A SET OF PISTONS 

                                          A SET OF ALL ANDREWS GEAR DRIVE CAMS 

                               A COMPLETE GASKET KIT W/MLS HEAD GASKETS IN .030" OR .040"


You can also purchase these kits as an exchange. For an additional $500 ($350 heads, $150 cyls) I will send you a kit with all

components all ready to install including a set of my heads. After you have installed them, you send me your take-off heads &

cylinders & I will refund $400 of that charge. For this option, the parts you return to me must be in the same color and

condition that I have provided to you.

         Here is my best selling performance package. The combination of good flowing heads and the correct cam and

compression piston will get you all the power you want and in the rpm range you ride your bike.  I have been riding Harleys

non stop since the mid 70's. I have owned and wrenched on just about every bike that Harley has made. I consider myself as

an average rider who enjoys riding two-up through the hills and valleys of New England. I enjoy the feel of a throttle that

responds when I roll it on. I occasionally like the rush of 2nd, 3rd and 4th gear with the throttle at or near full throttle but am

not overly excited about going over 100mph. However I do want to get to 100 as fast as possible, on occasion. With this

riding style I have come up with a package that is perfect for this type of riding. I am sure that whether you own a dress really

like the Andrews 26 or 37 gear drive cams or the Woods #6. For the lighter bikes the Andrews 32, or the Woods #6,7,8, or 9

cams work excellent.  These kits are not limited to these cams and will work great with all cams. These are just the cams I

use most often.
The kit price is for Andrews gear drive cams, Woods cams are $150 more, but worth every penny. For the early Twin Cam

99-06 I also offer the Harley upgrade to their new billet cam plate, hydraulic chain drive, and high volumn oil pump. (complete

conversion kit is $700.00 with your choice of cams).
The heads have been reworked with bronze high performance valve guides and high tulip 1.900 intake valves. They will

have the springs adjusted to the pressure of the cam you choose, up to a .550  lift . The cylinders are bored and honed using torque plates

and Keith Black piston kits for the 95" bikes and using Screaming Eagle piston for the 103 kits. These kits offer 9.3 or 10.25

compression.Whether you ride a Dyna or an Flt you will  enjoy this combination of parts. The cam will dictate where and when

the power comes on. All you have to do is work the throttle and enjoy.


On average the heads will flow  :    
Intake Valve   100 lift  38cfm              Exhaust valve    100 lift  30cfm  

                      200 lift  78cfm                                        200 lift  65cfm  

                      300 lift  116cfm                                      300 lift  95cfm   

                      400 lift  136cfm                                      400 lift  110cfm    

                      500 lift  145cfm                                      500 lift  116cfm            

                      550 lift  148cfm                                      550 lift  118cfm

 This combination has proven to be very compatible with many cam combinations, providing instant throttle response and

incredible pulling power. Whether you are on a full dresser or on a dyna the power is right there in the throttle. I have also had

plenty of customers tell me there gas mileage was up by 4-8 mpg. There is so much power in the low rpms that you will not

need to rev the motor as high to make as much power.

I am also willing to give advice or suggestions after the sale to help with the installation.

If you are using a Power Commander USB111  I can help with a map for this kit.

Once you have decided to have this work done, please complete the Service Order located on  the menu at the top of the

page. This can also be used to gather more info BEFORE you make a decision. Just let me know by checking the appropriate

box.


Any questions? Please contact me at n2ofaster@charter.net