dunn performance
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Cruiser
Joined: Mar 2012
Posts: 233
Likes: 0
From: Indiana
dunn performance
Does anyone have there kit? 96-103...or have heard of them. I know alot of people do the FM107 kit but I'm definitely a green horn when it comes to motors.... i know just enough to get me in trouble.So here is his description of his work on this kit.
Thanks for any input
Call 303-718-7146 with any questions you may have. I also have the 95" kits in stock.
Find out how I can save you some money.
Power, Performance and Reliability with hundreds of this 103" build package*as a proven performer.
A *103"" big bore setup for 2007-present twin cam models, including touring models. (except water cooled models)
A quality performance big bore package*setup*for*.550-580*lift cams.* Performance products for a powerful and dependable build. This is a full service ported and polished set of heads .*Like new*dealer takeoff heads and cylinders along with*brand new Ross forged pistons.*
Harley Twin Cam Ported, Polished and Flowed Performance Heads, -06 series*raised port* heads,**Ross( forged)*big bore flat top*piston kit*and cylinders.*
With over*35 years of machinining and polishing service to the performance enthusiast. I still run a one man shop with my number one priority "Quality"
These*are*clean dealer takeoff heads and cylinders,*with*os. 1.900*Intake, *&* os.1.610* exhaust valves.
*Each set of heads*are flowed, These are actual flow numbers for this set of heads, not a generic flow..**
With the Dunnperformance package we*consistently see 100-106hp with 108-118 fpt on average with this 103" setup and a set of .555-.575 lift cams. Harley's stage 4 kit,per Hog 2014 magazine article puts out 95hp and 100fpt at almost twice the money.
Everything is in stock and *ships within*2 days after purchase.
These heads will fit all 2007-2014 twin cam motors. (except water cooled models. The heads have a very high lustre on the exhaust ports and the combustion chambers to reduce the carbon buildup and run cooler.**The intake ports are finished to 80 grit, to atomize the fuel.The intake*ports are ported* for excellent fuel transition through the port. You would'nt want highly polished intake port, as the fuel would*stick to the port walls. The ports are port matched with precision cnc machined porting rings.*I use manganese bronze valve guides, which pulls the heat from the cylinder and valves and offers extended life..*The*oversized 1.900 intake*valves are machined with a*muti-angle profile.* The oversized 1.610 exhaust valves are*also** machined with a multi-angle profile*for added flow.* This is a multi-angle valve job.*The seats are*serdi type radial design for maximum flow. All*the seats are checked* with a dial concentricity indicator gauge*for valve to seat seal with a concentricity runout of*less than .001 for a perfect seal.**The port side of the valves get a swirl finish. This helps to atomize the fuel as it enters the combustion chamber.*Remember, the liquid part of gas does not burn, it's the vapor. It needs to be atomized. This is why*you can have a really strong motor, and still get 50 mpg. "Efficiency"** The valve seals are new Viton seals which are the best for wear and heat resistance. The heads are decked .008 to create a*9.95:1 compression*with*the provided gasket set and the*Ross forged*flat tops pistons.*
*Excellent compression for a powerful and*dependable street bike.*The rocker side is machined .005 to ensure a good seal.* I would recommend a .555-.575 lift cam*with a .235-.250 duration with these heads.***These heads are ported to increase velocity and volume*which will give you much more torque and top end. The air opens up very fast.*The increased air flow through the entire lift range increases torque. Not just on the top lift.
*Torque is that great feeling you get when you twist the throttle. I don't like*huge ports because it slows the velocity. Think about it , you could bore a huge hole, lots of volume,but that volume would move very slowly. Result ,no torque, no bottem end. Most of us don't ride at 6000 rpm's.They are meant for a strong running street bike, not race engines. Of course we all like to twist the throttle every now and then. You will not be dissapointed with the power and torque you get from this setup.*The cylinders are bored* with torque plates and honed to fit the*Ross*forged*big bore pistons, that are supplied with this kit.**You will need to increase the jet size on carb models or increase fuel, through fuel management on fuel injected models.The heads are cleaned and lubed before assembly.
*Finally I test the valve to seat for a tight seal. They are dealer new*takeoffs*heads, ready for your project.*These are an outright sale, no down time, no trade required. Cores are accepted if you desire.
*Buy with confidence, Money back*guarantee.**I have sold many of these on Ebay with 100% feedback. You won't find another*big bore kit*at this price with all the detail work*I*have put into them.** This Dunnperformance*big bore kit*will produce incredible, clean power through the gears.*Thanks, from Dunnperformance****I will ship to countries outside the U.S.****
Call or*visit me at my website: Dunnperformanceheads.com**Any questions you may have, always happy to help. 303-718-7146 or 303-814-8913* Please call for technical information or ask how we can save you some money.
Thanks for any input
Call 303-718-7146 with any questions you may have. I also have the 95" kits in stock.
Find out how I can save you some money.
Power, Performance and Reliability with hundreds of this 103" build package*as a proven performer.
A *103"" big bore setup for 2007-present twin cam models, including touring models. (except water cooled models)
A quality performance big bore package*setup*for*.550-580*lift cams.* Performance products for a powerful and dependable build. This is a full service ported and polished set of heads .*Like new*dealer takeoff heads and cylinders along with*brand new Ross forged pistons.*
Harley Twin Cam Ported, Polished and Flowed Performance Heads, -06 series*raised port* heads,**Ross( forged)*big bore flat top*piston kit*and cylinders.*
With over*35 years of machinining and polishing service to the performance enthusiast. I still run a one man shop with my number one priority "Quality"
These*are*clean dealer takeoff heads and cylinders,*with*os. 1.900*Intake, *&* os.1.610* exhaust valves.
*Each set of heads*are flowed, These are actual flow numbers for this set of heads, not a generic flow..**
With the Dunnperformance package we*consistently see 100-106hp with 108-118 fpt on average with this 103" setup and a set of .555-.575 lift cams. Harley's stage 4 kit,per Hog 2014 magazine article puts out 95hp and 100fpt at almost twice the money.
Everything is in stock and *ships within*2 days after purchase.
These heads will fit all 2007-2014 twin cam motors. (except water cooled models. The heads have a very high lustre on the exhaust ports and the combustion chambers to reduce the carbon buildup and run cooler.**The intake ports are finished to 80 grit, to atomize the fuel.The intake*ports are ported* for excellent fuel transition through the port. You would'nt want highly polished intake port, as the fuel would*stick to the port walls. The ports are port matched with precision cnc machined porting rings.*I use manganese bronze valve guides, which pulls the heat from the cylinder and valves and offers extended life..*The*oversized 1.900 intake*valves are machined with a*muti-angle profile.* The oversized 1.610 exhaust valves are*also** machined with a multi-angle profile*for added flow.* This is a multi-angle valve job.*The seats are*serdi type radial design for maximum flow. All*the seats are checked* with a dial concentricity indicator gauge*for valve to seat seal with a concentricity runout of*less than .001 for a perfect seal.**The port side of the valves get a swirl finish. This helps to atomize the fuel as it enters the combustion chamber.*Remember, the liquid part of gas does not burn, it's the vapor. It needs to be atomized. This is why*you can have a really strong motor, and still get 50 mpg. "Efficiency"** The valve seals are new Viton seals which are the best for wear and heat resistance. The heads are decked .008 to create a*9.95:1 compression*with*the provided gasket set and the*Ross forged*flat tops pistons.*
*Excellent compression for a powerful and*dependable street bike.*The rocker side is machined .005 to ensure a good seal.* I would recommend a .555-.575 lift cam*with a .235-.250 duration with these heads.***These heads are ported to increase velocity and volume*which will give you much more torque and top end. The air opens up very fast.*The increased air flow through the entire lift range increases torque. Not just on the top lift.
*Torque is that great feeling you get when you twist the throttle. I don't like*huge ports because it slows the velocity. Think about it , you could bore a huge hole, lots of volume,but that volume would move very slowly. Result ,no torque, no bottem end. Most of us don't ride at 6000 rpm's.They are meant for a strong running street bike, not race engines. Of course we all like to twist the throttle every now and then. You will not be dissapointed with the power and torque you get from this setup.*The cylinders are bored* with torque plates and honed to fit the*Ross*forged*big bore pistons, that are supplied with this kit.**You will need to increase the jet size on carb models or increase fuel, through fuel management on fuel injected models.The heads are cleaned and lubed before assembly.
*Finally I test the valve to seat for a tight seal. They are dealer new*takeoffs*heads, ready for your project.*These are an outright sale, no down time, no trade required. Cores are accepted if you desire.
*Buy with confidence, Money back*guarantee.**I have sold many of these on Ebay with 100% feedback. You won't find another*big bore kit*at this price with all the detail work*I*have put into them.** This Dunnperformance*big bore kit*will produce incredible, clean power through the gears.*Thanks, from Dunnperformance****I will ship to countries outside the U.S.****
Call or*visit me at my website: Dunnperformanceheads.com**Any questions you may have, always happy to help. 303-718-7146 or 303-814-8913* Please call for technical information or ask how we can save you some money.
Thread Starter
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Cruiser
Joined: Mar 2012
Posts: 233
Likes: 0
From: Indiana
How long have you had them? Notice any change from stock?
Former Sponsor
Joined: Aug 2005
Posts: 10,968
Likes: 54
Used their kit on my Dyna. 95", pistons and heads. That bike ripped. Needed to get a different piston ring compressor to get the cylinder on the pistons but once together it hauled ***. I amsure there are better options out there but for the price I paid for heads, cylinders, pistons I felt it was a good deal.
The pistons are Ross pistons. The cylinders were stock that had been bored and the heads were stock that were ported and polished. He had everything in stock ready to ship and they got to me in a few days.
The pistons are Ross pistons. The cylinders were stock that had been bored and the heads were stock that were ported and polished. He had everything in stock ready to ship and they got to me in a few days.
Thread Starter
|
Cruiser
Joined: Mar 2012
Posts: 233
Likes: 0
From: Indiana
Used their kit on my Dyna. 95", pistons and heads. That bike ripped. Needed to get a different piston ring compressor to get the cylinder on the pistons but once together it hauled ***. I amsure there are better options out there but for the price I paid for heads, cylinders, pistons I felt it was a good deal.
The pistons are Ross pistons. The cylinders were stock that had been bored and the heads were stock that were ported and polished. He had everything in stock ready to ship and they got to me in a few days.
The pistons are Ross pistons. The cylinders were stock that had been bored and the heads were stock that were ported and polished. He had everything in stock ready to ship and they got to me in a few days.
Road Master
Joined: Aug 2010
Posts: 754
Likes: 20
From: S.C. PA
Had there heads on for about a year now. When I installed heads, I also installed the woods 777 cams. I knew with these cams I needed an increase of compression so I had a set of jim gutches 107 cylinders w/ cp pistons installed. Dunn's milled the heads I installed .015 which intern bump my compression to 10.6 to 1 with the CP Pistons. Yes , I am satisfied with them!
6th Gear
Joined: Mar 2017
Posts: 10
Likes: 2
From: Michigan
Dunn Performance Kits are Top Notch !
I have used Dunn Performance kits on several builds .
Best bang for your buck in the game !
Keith Dunn knows his **** and he answers the phone himself .
Its the only kits I use anymore.
Call Keith at 303-718-7146
Tell him Rooster Ron sent you :-)
Best bang for your buck in the game !
Keith Dunn knows his **** and he answers the phone himself .
Its the only kits I use anymore.
Call Keith at 303-718-7146
Tell him Rooster Ron sent you :-)
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Road Warrior
Joined: May 2010
Posts: 1,348
Likes: 52
From: Central Illinois
Since you're in Indiana, why not give Larrys Motorcycle & Machine a call. He's in Oaklawn, IL.
Buy a set of 103" flat tops from HD and have Larry bore your cylinders and port the heads.
If you're near Evansville try Sheffer Performance.
Buy a set of 103" flat tops from HD and have Larry bore your cylinders and port the heads.
If you're near Evansville try Sheffer Performance.
Last edited by uscanuck; Oct 31, 2017 at 10:34 PM.
