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[kken6217]

Hi. I am new to the forum.

I have an '05 Ultra Classic, 95", 203 cams, SE Performance slip ons. I was thinking of going to a 103" stroker. Is the 103" kit the same that comes with the CVO bikes?

Cost aside, what are the pluses and minuses of this in going from a 95" to the 103"? Are strokers reliable, have excessive valve train noise, better exhaust note? Is the longevity similar to a non –stroked engine? How much more power can be expected over a stock 95" motor? Is there a stage 1 and stage 2 for a 103"? Can I use the same exhaust that I have now?

Thanks for your help.
Ken

[bubbarosa]

The harley stroker kit is the exact same kit that is on the 103 CVO bikes.  You get the heads(giant 95CC chambers, about 8.9:1 compression) that say "Screaming Eagle 103, the crappy SE253 Cams, cast pistons, stroker crank, 95/103 cylinders, and all the gaskets and bearings.  If you already have the 95 cylinders, you would be better off just getting the stroker crank kit and going with the 103+ heads and pistons or the HTCC heads and pistons.   Get a decent cam while your at it that will work with 10.5 compression. (wood tw8 or 9, andrews TW55 or TW60, wild things TC-4  or TC-2's, SE260 or 264's)  those should get you close to 120 hp.  I bought the kit.  Wish I hadn't.  Still have the SE253 cams and cast pistons sittin around.  "Stock" 103 is pretty much a dog.  A good 95 will eat it up easily.  I spent a grand getting the heads redone and another 600 on cams and gear drive.   As for sound, you wont notice much difference.  If I was doing it again I would just go buy a Jims 120" and sell the original motor.  Overall that would be about the same money as this upgrade has cost me.

[BLM777]

If you haven't ridden a bike with an out of the box Jim's 120, you need to before purchasing one thinking it is a ready to go performer.  Stock, it is a real "mutt", not unlike a stock 103.  You will spend at least the same amount of cash making the Jim's run as you would waking up a 103.  Bottom line....big bucks for a finished product.

[Unbalanced]

Kken,

Here is what I would do is since you have a 95 kit already I would either buy the 103 bottom end, send my existing heads out to one of the named guys will add them at the bottom, forged piston of the head builders choice and a matching cam they decide will run the best.  I would try and stay 10.0 to 1 or under so you dont beat up the bike / starters etc.  If you go to over 10 to 1 or greater get them to install compression releases.

If you were to to put a Andrews 55g in you would find that you have detonation if you went 10.5 to 1.  The cam does not like much over 10 to 1.   I know cause I had the problem and andrews had me remove the cam.  The intake closes to early on that cam.  

If you stay harley go with the 251 cam if you want torqe for a long pull, if you want top end go to the 260 cam and make sure they clearance your heads to .609 and clearance the rockerboxes as well so you dont destroy them.

Depending on how you want to ride will determine what cam .... give us an idea of what your looking for and I am sure there are many people here who would be happy to help.

Other choices you might want to look into .... In the next 90 days Zippers will release a package for the 103 kit, or look to an SS bottom End like the 106, 116, or Zippers bottom ends, or Jim's bottom ends or whole motors.... how fast you want to go and how much you willing to invest.  

You most likely going to need a throttle body which leaves ... drilling your existing out to 48mm, buying a horsepower inc, or a zippers or a speeds or a kuryiakin.

As an example:

Short Block takes our screaming eagle heads that come on the CVO's he welds them up uses stock piston gives 10.0 to 1 and makes 116 torque over 110 horsepower cost is approx 999.00 plus gaskets, shipping and then your labor on your end.   Recommends a 55g cam another 700 bucks with gears and your off an running.

Most of the people making this type of power have converted the hemi heads we have that you will not have, so  there should be a bit less work for them to give you the dome shaped head and good numbers.

Some choices of guys to do the head work and make the recommendations.

Zippers Performance, Maryland
Tilleys, N.C.
Cycle Rama Florida
Branch Flometrics California
Short Block Charlie Arizona
John Sachs Florida
Freedom Cycles Nevada
T-Man N.C.
R&R N.H
Hal's Speed Shop Wisconson

[HUBBARD]

If you haven't ridden a bike with an out of the box Jim's 120, you need to before purchasing one thinking it is a ready to go performer.  Stock, it is a real "mutt", not unlike a stock 103.  You will spend at least the same amount of cash making the Jim's run as you would waking up a 103.  Bottom line....big bucks for a finished product.

Yeah, 'er 'uh, kken6217,
  Welcome to the site!  I am in total agreement with BLM777.  I've seen a dyno sheet on a Jim's 120".  100HP/103lbs. ft. torque.  [smiley=confused5.gif] I had more than that on my "Led Sled", when it had a 95" Motor!  I run a Zipper's 120" now, and I assure you, it will absolutely FLY!  [smiley=yes.gif] Glad to see another member with an Ultra.  Now I'm not the "Lone Ranger."  [smiley=huepfenlol2.gif] Later--HUBBARD    
  

[JCZ]

Unbalanced gave some good information and advice however, left off one of the bigger aftermarket performance vendors, BC Gerolomy.  You'll see Berry Gerolomy at all the AHDRA races mixing it with the racers and customers/riders alike.............
(check out the dyno sheet of this CVO......belongs to Gary A, a member of this site).........
http://www.bcheads.com/dyno.htm

[HUBBARD]

Yeah, 'er 'uh, JCZ,
  With a 21 tooth engine sprocket, his motor would be turnin' some serious RPM's.  I trust he installed a 6-speed?  I'd bet he was lookin' for 7th, his first trip out!  Later--HUBBARD

[Unbalanced]

JCZ only one problem with the current Gerolomy stuff is that they force you to use a Twin Tec with it for the delphi EFI.   When I called Gerolomy and spoke to the lead guy there he told me that I would have lots of problems using their throttle body and intake as a stand alone unit without the twin tech system.  

They BC Gerolomy don't recommend it themselves without the closed loop system    :*(   That is why it is a package unless you had previously purchased the twin tec elsewhere.

Daytona Twin Tec is not something I am going to debate, I will just say that based on conversations I had with people that were recommended to install it told me maybe you shouldnt that made enough sense to me stay away.

Note the link you gave for Gary's bike is for the old MM EFI   I have not called back in 3 months to see if there were adendums to give them there fair shake just reporting what I was told by them.

[geezerglide]

Unbalanced,

I went the SBC route in regards to the SE 103" Heads, used S&S 585 Cams.rest of engine stock, went with S&S Reed Valve. SERT, Rineharts and the HD 6 Speed

Dyond at 105.6 HP and 116.9 Ft. Lb. Torque attached. Have put on over 8,000 mile no problems.

geezerglide

[Unbalanced]

Geezer,

I am glad its working great looks like a lot of fun to ride.  

Was the cost around what i suggested 650-700 for cam / gears, 50 or so for gaskets and 1000.00 for the head work plus the labor to put it in ... ohh and 100 for the reedvalve.

700.00 + 1000.00 + 100.00 + 50 or so    call it 2000.00 plus labor?

[kken6217]

Thanks for all of the replies. I wanted to have the dealer do it and still try to keep it under the warranty (dealer or HD). The 103 kit in the catalogue is the street legal. The problem for me is that it HAS to go with the catalytic mufflers that it comes with. I would imagine this must sound like stock. There are no substitutes since there is no download available except for this specific one. Anyone know how they sound? Another option (I guess) is to have them put my other exhaust on which will probably make it too lean and take it immediately to a place near me that tunes Power Commanders and have then put in the Power Commander that I have on now and download a close map. After 500 miles I could have them dyno tune it. Would 50 miles or so with the non-kit exhaust make the new build run too hot? I appreciate any comments.

Thanks,
Ken

[Unbalanced]

KKen,

After spending all that money your about to lay down I would NOT take the chance that it was too lean cause it very well could be and you will be breaking in new rings.  What I would do is protect my investment and trailer the bike to the tuner and hope to hell he has a EFI MAP for a 113 motor that will get you by.   Or see if you can prepay him for the dyno work and get a map to get you by during your break in.   I do know if you had the racetuner that I could give you a map for my 124 motor that if you had a larger throttle body should get you by until your past the break in to dyno it.

If you go that route let me know I could email you the map.   Its for an SS 124 with a Zippers 50mm Throttle body.