Hi fellow HD enthusiasts, I'm new to the forum although I have been reading it for years. I'm getting ready to have my build done in a couple of weeks and wanted to get some feedback on the build before it actually happens.... especially if someone else out there has a similar build. The bike is a stock 03 Dyna Low Rider with only a Stage 1 kit and V&H Long Shots (yeah, it's a dog). I already own the parts listed below and just need to settle on who will be doing the CNC head porting. Anyway, here is the build, all feedback is welcome (I think):

S&S 98” Big Bore Kit,
S&S 585 Easy Start Cams,
D&D Fat Cat 2:1,
S&S Premium Tappets,
SE Premium Tapered Adjustable Push Rods,
SE Hydraulic Cam Tensioner & Oil Pump Kit,
Mikuni Carburetor HSR42,
Dynatek 2000 Digital Performance Ignition TC88-2P
CNC Stage 2 head porting (To Be Determined) - Looking at a 10.5:1 CR
(Note: I plan to upgrade to a six speed tranny at some point)

 

All a good combo but I think I would go to a good porter for the heads. They will make sure the heads flow as the cam necessitates.

 

Yea , why not !

 

Agreed. That's why I left that for the final decision before I squeeze the trigger on the build. I have been doing a bunch of research and have spoken\emailed with several head porters. Right now I have it narrowed down to one of the following:

BigBoyz (http://www.bigboyzheadporting.com)
Hammer Performance (http://www.hammerperf.com/tcporting.shtml)
NRHS V-Twin Performance (http://nrhsperformance.com/cncporting.shtml)
or possibly S&S Cycle (https://www.sscycle.com/go-fast-show...ystem-upgrades).

I've looked around at a few local shops, but I'm still leaning with the porters above.

 

I have almost the same build. See my signature for build details. I used Hillside for the head work and am very happy with the work. My engine builder here in California said he didn't know anyone that could have done a better job, and he's built hundreds of engine. The bike runs great! I couldn't be happier. You should get a few money HP than mine with the bigger carb. They say the stock carb,properly set up is good to 100HP. Mine stock carb required some work but it works just fine. Hillside also ported the intake manifold. My does ping just a bit. Here in California we have only 91 octane fuel. On 93 I don't think it would ping at all. I can add Klotz octane boost and it fixed the issue. Scott at Hillside was very helpful in guiding my desicions. Give him a call.

 

I’ve had really good luck with Aaron and Dan at hammer and they are close to you. Tell him what you have and how you plan to use it and he can match the heads to what you need, he talked me into a cheaper build than I had originally wanted because of how I wanted to use the back. It ran very well and was what I wanted. I like the way he works with you on the build sheet as well, you get to see and he answers your questions and changes what needs to be until your both happy with the options. If I was in Idaho that’s who I’d use.

 

Good build for a light bike.
Scott

 

Just make sure you get your compression right for those cams. I have a 95" bog bore on my '02 FLTR with gear drive S&S 585's with some headwork. The power comes on around 3100-3200rpm and from there it is a rocketship....Getting that big heavy bike off the line with those cams in a smaller displacement is a different story.

 

98"/S&S 585 is a build done a lot here,your going to want 1.90/1.610 headwork flowing in the 265+ @ 28" area,set at 10.5-1 minimum.expect 110+/115+

 

Thanks... great information. I will do some research on Hillside regarding the head work. As far as the carb goes, I had one person tell me that I may need to go to a 45 so that the carb doesn't hold me back from getting the most out of the build.... I guess I'll find out when it gets on the Dyno. Also, I noticed from your profile that it appears our Dynas are pretty similar; I have a Dead Center fairing as well.... attached pic for your viewing pleasure.