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[roadking321]

I'm getting ready to do a cam change on my '03 FLHRSEI2 (20k mi) - already bought the S&S cam plate, oil pump & quickee pushrods. The bike has a PCIII USB & Rinehart true duals & almost always ride 2 up w/ a tourpak for trips.  Most of the time our trips include very little highway riding - typically state routes.  I have a set of Andrews 21N cams in my other '00 RK & really like them but its a 95" w/ 1.9 int valves, bench flowed w/ 1.725 rocker ratio etc. (100 tq/80 hp).  I want to know if there's a better cam set for me & this CVO 103.  I have been told possibly Andrews 26N's but not sure.  Woods cams are always mentioned as a good choice but not sure which set's for me.  I'm not a big fan of H-D high perf parts so those are out.
Any suggestions are very much appreciated!
thanks,
Paul
PS - at this point I'd rather not pull the heads for bigger valves, springs & flow due to the current low miles.  That may be something I do in the future - I'm trying to restrain myself & keep it semi-stock as opposed to what I've done to my other 3.

[efrbc1]

If this is the same 103 motor that is in the 04 and 05 SEEG, the Zippers 575 is the way to go.  Made for this motor and work well.  Have them in my 05 and very happy with them.

Chris

[Fired00d]

If this is the same 103 motor that is in the 04 and 05 SEEG, the Zippers 575 is the way to go.  Made for this motor and work well.  Have them in my 05 and very happy with them.

Chris

It is the same motor and X2 on the 575's I have them in mine and happy also.

 
Ride Safe,
Fired00d
 

[HD Street Performance]

Put a very short cam in it such as an Andrews 48 or Cyclerama 575. This is a very low compression motor ~8.7:1

[Twolanerider]

As much as I'm not a fan of the company can't disagree on the 575 cams from Zippers for the 103s.  Installed a set in my own bike back a hundred years ago when the cams were first released and did the same in several other 103s since.  It's always been a winner.

[roadking321]

Put a very short cam in it such as an Andrews 48 or Cyclerama 575. This is a very low compression motor ~8.7:1

Hey HD Street Performer, I talked to Wes Brown @ CycleRama yesterday - he told me that his CR 575 would not work w/o changing the valve springs but he was going to check with a buddy @ HD to see if those heads are the same as what he's thinking they are. I've read several times that the heads (CVO/SE 103 vs "regular" 103 heads) are different depending on what yr produced  (here's one article - http://neverworld.net/socalnetscum/files/tech/HD_TC_IntakeFBStudyRel1.pdf) - Dwight Barry (Syke Performance) did a set of my heads on my '00 RK - so I'm waiting to hear what Wes tells me after talking to HD - I'll let you know.
thanks for the Zippers suggestion - I'll check em out - concerning the CR, HD in my specs says 9.0:1 - you may be correct & HD just rounded it to 9:1 - if I was pulling the heads, I'd use a .030 gasket for a slight bump

[HD Street Performance]

Wes may have been thinking OEM heads, the cvo has springs that are good to .600 lift. Same spring used on the cvo110
The cvo103 heads have the same port package as the SE performance MCR heads. We used to bolt those on with S&S 570's or 585s every day

[Twolanerider]

Hey HD Street Performer, I talked to Wes Brown @ CycleRama yesterday - he told me that his CR 575 would not work w/o changing the valve springs but he was going to check with a buddy @ HD to see if those heads are the same as what he's thinking they are. I've read several times that the heads (CVO/SE 103 vs "regular" 103 heads) are different depending on what yr produced  (here's one article - http://neverworld.net/socalnetscum/files/tech/HD_TC_IntakeFBStudyRel1.pdf) - Dwight Barry (Syke Performance) did a set of my heads on my '00 RK - so I'm waiting to hear what Wes tells me after talking to HD - I'll let you know.
thanks for the Zippers suggestion - I'll check em out - concerning the CR, HD in my specs says 9.0:1 - you may be correct & HD just rounded it to 9:1 - if I was pulling the heads, I'd use a .030 gasket for a slight bump

Not 100% sure I'm understanding all you might be suggesting.  If it's a comparison of spring packs across different years of the 103 motor, however, that's an easy check.  2003 Road King's springs on the 103 are 18272-00 which is the same as the springs on a 2005 103 in a SEEG.

[roadking321]

yea I have no idea that's why I'm asking you guys - I haven't & don't intend to pull the heads or even the rocker boxes at this time.  it does make sense that the CVO heads have a different set of springs than the stock 103 but...  Are the valves the same or diff size vs non CVO? - many discrepancies on the web I don't know what to believe & the MoCo doesn't put much info out.  I have the parts manual for that bike as well as the service manual but all it states is a part number & no description - if those springs will accept a lift of .600 that's one of the items I needed to know - Thanks

[HD Street Performance]

When you port the heads you see them all. The CVO 103 is a very different head than the oem 88. The parts books spell it out and include the spring numbers as proof. Get on the microfiche sites and look it up for yourself and then you can trust your own research.

[johnsachs]

103 CVO heads with 1.900" intake valves have .600" lift springs..........
John

[HD Street Performance]

These smart guys always say it better with less words, I need to take notes.

[Ironhorse]

Getting my 103 worked on by HD-Dude at Metal Dragon. He suggested the 551 cams as they best match my double up touring style of riding. Lots of good usable low to mid-range torque.

[roadking321]

HD Street Perf, i just saw your comment about Wes, yea i agree. I didn't think of taking the part number to the web - I know they only give a part number but not a specs like valve dimensions.
Chris thanks for the Zippers/Red Shift suggestion.  I got the following from Pete @ Zippers:
We have an excellent cam choice for your CVO Road King!
The Red Shift 576 Cam.
This can was designed specifically for the CVO 103” Engines and will provide you with the TQ that you are looking for!
NOTE: The graph states that the cam used is the 575. The 576 is the revised version of the 575 to work with the dual springs that are in your heads. The numbers will be exactly the same but the 576 will run quieter in your engine. These heads have a dual spring and are NOT the beehive style springs. They also have heavier 5/16" valve stems. This is why we are recommending the 576 cams for this application. These heads flow more than a stock 103 head and the 575/576 was designed specifically for this engine.

John, thanks for those specs
At this point,  think I may be going this route (RS 576) - from what I've seen on their site, they'll get better if I have a future comp bump & increased airflow.
 

[Mikey]

When my 2003 was new I had the stock head pipe, V & H can's, PCIII, and Zippers air filter it dyno'ed at 85HP. Freedom Cycle owner Brad Yuill had a hot CVO set up back in those years for the 103. At 15K I added the YB14SC cam's, gear drive, true dual Freedom exhaust and it dyno'ed at 103HP. It made it a really fun ride. It now has 37K and has'nt had any problems with that set up. Interesting that Freedom also had .575 cams but didn't use them on the CVO's?