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[larouchedem]

Bubbarosa,

Thanks. I assume these are factory CVO103 heads, and not the over the counter version "SE" 103 heads?

Fyi - I posted cam specs in another thread.
Dave





link=board=CVO_TC;num=1104899854;start=0#1 date=01/05/05 at 11:27:59]Here are some pics of the 103 heads.

[PCC]

I've posted this elsewhere on this site, but these posts seems to get buried. Just for comparison for you guys here's the motor I built last year and results.

Screamin Eagle CNC heads
Wood TW6HG cams
Ported Stock Throttle Body
Screamin Eagle Forged Flat Top Pistons
Cometic .030 gaskets (Compression Ratio is  Exactly 10:1)
Screamin Eagle Roller Rockers
Jims Titianium Pushrods
Feuling Oil Pump
Delkron Plate
Power Commander III USB
Freedom Pipes

Last Dyno Run in August was

Horsepower  118.6
Torque          121.1

I think you can reasonably expect these results with these components and proper tuning. In fact, with a better induction system with a dual runner setup I think more power is easily achieved. The best thing about this setup is the slightly lower compression ratio. With the psitons and heads in the pictures, you'll have to deck the heads and use the .030 gaskets just to get to 10:1. The CNC heads have bigger valves, porting and the combustion chamber is slightly different. The is a squench band and the spark plug is moved closer to the center. Hope this info helps you in your builds and gives a point of comparison.

[larouchedem]

Bubbarosa,

No offense meant, but a true HEMI has a center spark plug. These might be considered "semi-hemi", although I dislike that term. I assume that there is a slanted quench surface machined into the edge of the chamber? Can you measure the angle of it?
Thanks.
Dave





link=board=CVO_TC;num=1104899854;start=0#2 date=01/05/05 at 11:28:51]A pic of the combustion chamber.

[bubbarosa]

Hmm measure the angle.  Ok... I will try... lets see what i remember about sine's, cosines, and tangents... ugggh.  Ok SEMI-HEMI.. anyway the chamber is dome shaped.

[bubbarosa]

the angle of the taper is 25deg.... it is .135 wide and .064 deep approximately and total run on the angle of about .149

[larouchedem]

Bubbarosa,


Cool. I've been wondering if the angle would match the slanted quench design SE103" stroker piston that's used with the HTCC heads.

**Are the pics of a factroy CV0103 head, and not an over the counter SE103 head?
Thanks much.
Dave
p.s. - can you measure the outer diameter of the slanted area?

link=board=CVO_TC;num=1104899854;start=15#19 date=01/05/05 at 14:00:13]the angle of the taper is 25deg.... it is .135 wide and .064 deep approximately and total run on the angle of about .149[/quote]

[bubbarosa]

These heads are the ones in the factory 103 kit that states is same as found on the factory cvo SE bikes.  http://www.harley-davidson.com/gma/gma_product.jsp?PRODUCT%3C%3Eprd_id=845524448764975

[larouchedem]

Bubbarosa,

Hmm. I was told that the over the counter version was different than the factory bikes' heads. Thanks for the info!
Dave


link=board=CVO_TC;num=1104899854;start=15#21 date=01/05/05 at 14:10:53]These heads are the ones in the factory 103 kit that states is same as found on the factory cvo SE bikes.

[bubbarosa]

there is another version of the 103 heads, a performance version that do not have the 103 script on the head.  They just say Screaming Eagle on them not Screaming Eagle 103
They are listed as Screaming Eagle 103+

http://www.harley-davidson.com/pdf/SE_032_067.pdf

go to item 42     There is a chart after item 47 to give you the comp ratio's of the different pistons and heads

[larouchedem]

Bubbarosa,

Thanks for the info. I can't get the files
at the MoCo's site to load, as my phone line hookup is lousy. I wish that they listed everything the old way there. It was easy to access. I do have a pro parts printed catalog coming, so I'll have a look when I get it.
Dave


link=board=CVO_TC;num=1104899854;start=15#23 date=01/05/05 at 14:28:25]there is another version of the 103 heads, a performance version that do not have the 103 script on the head.

[bubbarosa]

OH boy... u need a blueprint... the outside diameter of the whole hole is 3.785
inside the taper it is 3.52 and depth is approx 1 inch.. measured with my Home Depot calibrated yard stick

[geezerglide]

Bubbarosa,

I am not to sure of the pricing as SBC does various Head Work. Best bet is to email;

charlie@motorcycle machine.com, or better yet describe your build and ideas and discuss with both Charlie and Hippo (Frank), for the best results.

Phone number is 480-921-1446.

The heads I have are the one twer on the Factory SE 103" on the Electra Glides for 04.

geezerglide

[PCC]

Check the Screamin Eagle Performance Parts Catalog. There is a piston head compatability matrix which shows the two different types of 103" chamber designs and the pistons these will be copmpatibel with. Generally, with one exception I think, HTCC heads and pistons must go together. I think the CNC heads are the only ones which will accomodate flat top pistins and HTCC pistons a s well. It's easy if you just get the catalog.

[larouchedem]

Bubbarosa,

Thanks.
Dave


link=board=CVO_TC;num=1104899854;start=15#25 date=01/05/05 at 15:16:34]OH boy... u need a blueprint... the outside diameter of the whole hole is 3.785
inside the taper it is 3.52 and depth is approx 1 inch.. measured with my Home Depot calibrated yard stick[/quote]

[larouchedem]

PCC,

I have a printed catalog coming. Can't get any of the MoCo's pdf files to load on my pc.

Understood, but I'm wondering if it might be quite simple to mod the CVO103 heads to work with the HTCC pistons.

Not sure why I spend time on such wonder-ments. I don't even have a CVO bike. I just enjoy figuring out what can work.
Dave
'99 FXDL 118" -133/142 at the wheel
'02 FLHT

link=board=CVO_TC;num=1104899854;start=15#27 date=01/05/05 at 16:03:50]Check the Screamin Eagle Performance Parts Catalog. There is a piston head compatability matrix which shows the two different types of 103" chamber designs and the pistons these will be copmpatibel with. Generally, with one exception I think, HTCC heads and pistons must go together. I think the CNC heads are the only ones which will accomodate flat top pistins and HTCC pistons a s well. It's easy if you just get the catalog.[/quote]