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[Banana man]

I would like to know the stock numbers on some engine parts of my 2005 103 seeg.


1.  The stock throttle body size?

2.  The stock size of the intake and exhaust valves?

3.  The stock cam size?

Thanks for your help.                      Mark

[hd-dude]

Not 100% on this but I think the stock TB is 45 or 46mm
The stock valves in the 103 heads are the same as the stock TC88 heads Intake 1.840-inch; Exhaust 1.565-inch
The stock cam is a CVO-253.


duration
Intake 239, exhaust 256

.535 lift

[sadunbar]

Not 100% on this but I think the stock TB is 45 or 46mm
The stock valves in the 103 heads are the same as the stock TC88 heads Intake 1.840-inch; Exhaust 1.565-inch
The stock cam is a CVO-253.


duration
Intake 239, exhaust 256

.535 lift

46mm...

[Banana man]

Thanks for the info. Just wanted to know what I had for a starting
point to do some mods later. Now just working on air, exhaust, and fuel.

Thanks again                   Mark

[rednectum]

Not 100% on this but I think the stock TB is 45 or 46mm
The stock valves in the 103 heads are the same as the stock TC88 heads Intake 1.840-inch; Exhaust 1.565-inch
The stock cam is a CVO-253.


duration
Intake 239, exhaust 256

.535 lift

yep and the cam closes at 53------thats why it is soggy down low but rips when ya scream it. kinda backwards for a bagger.