If you have a new bike and plan to dump $4,000 to $5,000 into the motor heres what you should do.Take the stock motor out and put it on the shelf and buy a new 124 for about $6,000.You'll have penty of power to burn the tires off the rims, i dumped $5,000.00 into a 95 build and didn't get a dime back when i sold my bike.

 

Man this whole thread is getting messed up with lots of misinformation etc. Let's see if we can make sense of this:

Here are the HD builds I know of andfor sake of this thread for07-08's and 96" to 103" motors:

Stage I-A Screamin Eagle Air Cleaner kit-$150 parts only

Big Bore Stage I- increases displacement from a 96" (1584cc) to 103" (1690cc). Big Bore cylinders, Flat Top Pistons, a Stage 1 Air Cleaner and some miscellaneous rings clips and gaskets. Also comes with a stiffer clutch spring. No cams, uses stock cams.-$640 Parts only

Big Bore Stage II-everything mentioned above with SE 255 cams and SERT.-$1,200 Parts only (Parts and labor for mine was $2,600)

Big Bore Stage II with Heads-everything mentioned above with SE Cams, (honestly not sure what kind) and SE Heads, possibly bigger throttle body, etc. I don't have any real knowledgeof this kit because it doesn't interest me. The big obvious difference are the Heads which retail at HD for around $1,200 alone, so that is where you start getting into the $4000 range with labor.

There are many other after marketperformance kits for that amount or less and if I were going to do it with Heads I'd go that route. My choice of a Stage II with stock heads and SERT for $2,600, 85-90 HP and 100-105 ft/lb tor

 

The SE 103" Big Bore Stage II (29893-07A) as you called it comes with the 255 cams as well for around 600.00.
The Stage II Big Bore Kit provides the parts you need to improve the track performance and horsepower of your EFI-equipped model. The kit increases the displacement of your Twin Cam-equipped model from 96 cubic inches (1584cc) to 103 cubic inches (1690cc). Includes Stage II (SE-255) cams, Big Bore cylinders, Big Bore flat top pistons and a Stage I Air Cleaner Kit with one-piece backplate, integral breathers, all mounting hardware, and gaskets. Also includes a high performance clutch spring. Requires separate purchase of primary cover gasket. Not all components shown. All EFI-equipped models require ECM calibration* (priced separately). For race application only.
There is a great deal of misinformation out there which is why I asked, that's why I'm going to spend as little as possible to accomplish this task (that may have come off the wrong way but it is what it is).
The way I see it, I could buythe SE 103" kit (532.00 + shipping from Zanotti's) and have itinstalled for around a grand, I can't imagine it costing more than$2000 total, but that's just me folks...I'm not cheap, I'm frugal!

 

MY dealer said the trick setup on an 08 dresser was the hidden chrome throttle cable for $300. He swears it's in there and that it give you another 25 horse. He made me promise not to tell everyone, but you guys seemed so freindly I couldn't help but let you in on it
seriously though---
2008 dresser - set of slip ons/SE AC/SERT - most bang for the buck
After that the ROI isjust too small for most of us to justify
but, like they say, this is America! Spend as you see fit.
Smokin

 

Hate to burst your bubble but 96 to 103 is not a big enough jump.For the money it is not worth it.If you truly want more power wait and step up into the 120" range.Now that should put a smile on your face.

 

I live within a hour and a half of 6 dealerships and since the 07's have come out they have at differant times ran 1400.00 parts and labor on 103 inch kits. Dont want to throw fuel on the fire but think you could do better than ase kit, Unless you are worried about warrenty issues.

 

I've now put 2k miles on my RKC since taking delivery last week; I'venoticed that mid-range torque on the highway is less than desired, especially when passing on a two lane and really needing extra zip. I talked with the service manager at my dealer about the issue, he suggested true duals, a SERT, Stage 1 ac and a 103 kit (they are running a special of $1,700 parts and labor for the kit) total cost of approx $2,500. I'll post the dyno and road results when I've had some time on the modified engine. By the way, they warranty the upgrade for the two year warranty.

 

Man, all kinds of rantin' going on here. We all have our own ideas of what we want in a bike. We can't impose our ideas on somebody elses build.
The ONLY think we should ask ourselves is "what do we want our bike to do?"
You can't have it all - 100k reliabilty, jap smashing horsepower, Duramax yankin' torque (ya I'm a GMC guy) and hybrid fuel mileage. Not gonna happen!
As I see it there are four groups of riders, we all crossover the lines I know:
1) Normal everyday riding, touring with the wife, ya know the country diner ride and over to the bed and breakfast. Sturgis run in August.
2)The "hotrod" touring bagger guy (or gal, stayin' pc). Rides a few hundred miles a day on the weekends. Likes to race the buddies on the on ramps. Braggin' rights are important. Fuel mileage and reliabilty are very important though.
3) Bike night Charlie. Mileage or reliabilty are important, only going to ride a few miles at a time. Needs to have all the "hot name" aftermarket stuff on his bike. Has his dyno chart in his pocket. Probably never bucked a 40 mph crosswind at 80 mph for 200 miles. Sweet bikes though. Value is based on some sort of calculus applied to his dyno chart.
4)Serious bike builder guys. Indy shops and upstart performance shops. These guys know motors! They understand the physics involved and get the most out of it. Huge cube thunder buckets yielding enough torque to pull tree stumps and horsepower to propel anything onboard to cheek flapping speeds.

1's don't need more than about 80 -85 hp from a 96. Runs cooler, alittle more snap and that Harley sound.
2's need to just get to that magic "one-fer-one number", 1 hp / ft lb per cubic inch. The theoretical efficiency peak. 103" at around 103 hp. Great power, great mileage, decent reliability and runs cooler than stock.
3's need as much as they can afford. Usually top out around 130 hp at any displacement. Power after this mark gets hard to get! Mileage doesn't matter so big *** cams and super flowing heads turn these guys on.
4's just keep pushing the limits of the V twin. They have improved true design and have mastered the physics. 150 hp up to who knows anymore.

Justmy long winded roll of 2 cents.

 

have you done any job on heads or just big bore 103 stage2?
albert1

 

....and you can't take it with you. Enjoy!