I am looking to do a big bore kit on my 2006 softail. What are all you guys doing? I was thinking to do a 107" kit. What kind of cams and heads to go along with that? Any help would be greatly appreciated.

 

I'm looking into my crystal ball and I see Chaz on this thread in the very near future.

 

Hahaha

 

I may get flamed for saying this, but why stop at 107"? You have an '06, so anything over 98" is going to require splitting your cases to replace crank and boring cases to accept larger cylinders. If you are willing to do/pay for this to happen, why not spend the extra $$$ and build a KILLER 117"? If you don't want to do those things, just get a 98" bolt on kit, and skip the case work. Have your existing cylinders bored to 98", swap to gear-driven cams, and port your heads. That may be all you ever want/need....until you get addicted to power, and it becomes a never ending chase for more (like me).

 

There's some serious wisdom to that advice, but.....

Be aware that when you make that jump, you'd better budget for an appropriate exhaust and clutch, you might start blowing your spokes off your wheels, and stronger brakes are probably a good idea.

I like the idea of an all-bore 107. There's a decent torque increase, lots more horsepower, and it'll rev quickly. I think it's probably the best motor for a solo-ridden Softail or Dyna. If you have a heavier touring bike and/or carry a passenger a lot, 117 is the way to go.

 

rthomp159 has a good point. I completely forgot that Axtell makes an "all bore" 107" kit. I was thinking about going 107" by the 4.375" stroke, not the 4." Clutch and exhaust is also something to think about.....as already mentioned. Your V&H Big Radius aren't terrible, but you're going to leave power on the table (ask me how I know).

 

www.head-quarters.com

One of the best, if not THE best vendors out there.

 

Axtell ,HQ , zippers, S&S are some of the best mfg out there for cylinders. as far as Head work goes i have had Baisley do my heads this time eand i will never buy anything but.
a 117 will do you justace if you want the expense.
a good 117 will run you 6000 and up.
sure you can find deals here and there but the parts are what they are you can snag a few good deals on e-bay from time to time .
i suggest that you do a 107 kit get the heads similar to beaureed 445 has (get them set up for a 650 cam) bump the compression up to about 10.8 or so axtell all bore 107 mountain motor with a t-man 650 cam and hold on you will be over the 120 hp/tq mark with a good tune.
these are the patrs you will need.
Baisley 1.90 valves super street
roller rockers
axtell 107 kit
bore your cases and weld the crank
Timkin
55 mm hpi t/b
borzilla.
that fu..ker will rock man

 

Before you build the motor, you gotta ask yourself, Do I want a light to light killing machine? or do you want something you can ride all day comfortably & flex some muscle if need be?

Answer that, then you can get some solid advise.

I picked the later for now being a new bike and wanting to keep my warranty. in your shoes,I may have done it differently

 

You definately have to look at your budget then your wish list. My 98" is pretty awsome compared to it's stock tune. I can roll on from 70mph in 5th and I'm at 100 in just a few seconds. I really can't see needing much more.