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Author Topic: 103 CVO chamber, piston specs wanted  (Read 12767 times)

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larouchedem

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103 CVO chamber, piston specs wanted
« on: January 04, 2005, 11:37:34 PM »
Hello All,
New member here. Non CVO owner. A discussion at a TC88 yahoo group sent me here. We have cam specs, but we're curious about the heads, pistons, etc. Round chamber? Slanted quench design? Flat top piston? If flat, we're wondering if the piston is same as the SE stroker piston. Anyone have a parts book? A pic of the chambers? TIA
Dave
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #1 on: January 05, 2005, 11:27:59 AM »
Here are some pics of the 103 heads.  Just waiting until I figure out just what cams and headwork I am going to have done before I install on my 2004 FLHTCI
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #2 on: January 05, 2005, 11:28:51 AM »
A pic of the combustion chamber.  Full hemi-style.
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #3 on: January 05, 2005, 11:29:22 AM »
Another view of the combustion chamber
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #4 on: January 05, 2005, 11:33:44 AM »
The exhaust port.  Notice the big hump, restriction at the bottom of the port.
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #5 on: January 05, 2005, 11:37:45 AM »
Intake valve.   Looks like about a 1.92 inch to me.
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #6 on: January 05, 2005, 11:39:11 AM »
Valve springs with damper inside.
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #7 on: January 05, 2005, 11:42:16 AM »
Exhaust Valve.  Sorry it is overexposed but it reads about 1.62 on the caliper
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #8 on: January 05, 2005, 11:59:44 AM »
Here is the piston.  Definately a flatop with valve reliefs.
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #9 on: January 05, 2005, 12:01:16 PM »
Top view of piston
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #10 on: January 05, 2005, 12:03:27 PM »
This is a view of the intake port.  Note the hump in there also
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geezerglide

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Re: 103 CVO chamber, piston specs wanted
« Reply #11 on: January 05, 2005, 12:11:09 PM »
Bubbarosa,

I have an 04 SE CVO engine, the heads have been reworked (SBC "pro flow" O ring sealed bronze maganese guide, SBC Viton seals, Full Porting, high velocity ports, Proprierty  "Twin Swirl" combustion chambers, flow vanes incorporated into the ports to enhance swirl) Basically welding up and maching the large combustion chambers of the 103 Heads, by SBC in Phoenix.

Going with Andrews TW55G cams, Baker DDS  6 Speed. Probably oing with the Rinehart or RB Racing 2:1 Black Hole.

Conservativley looking at 110 H and 115 lbft TQ. I will find out in April when I get to Phoenix.

geezerglide
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #12 on: January 05, 2005, 12:13:38 PM »
Someday if i ever find my degree wheel I might degree the cams, being nobody/nowhere have i ever seen any specs on them except the .530 lift spec.  and will post the results of that.  Meantime if anybody wants to buy em they are for sale as I am going to use either Wood TW8g's or Andrews TW55g's.
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #13 on: January 05, 2005, 12:29:03 PM »
I also have D & D fatcat 2 into 1 exhaust on back order.  I guess I wil have to pay harley a bunch of money to for an SE Race Tuner.  I already have a PowerCommander IIIusb on it, but dont thing with just the stage one 88cu flash  it has the range to up the fuel requirements for this engine.  With harley charging $150 for the reflash's, I might as well do it myself with the race tuner.  Rineharts sound real good but dont do much for torque, and they are terrible to ride behind them on a 103, very loud. Also looking very hard at this Fuel Injection Unit by Twin-Tec.  The price for the new unit has dropped by more than half.  http://www.daytona-twintec.com/TCFI.html
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bubbarosa

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Re: 103 CVO chamber, piston specs wanted
« Reply #14 on: January 05, 2005, 12:40:24 PM »
Hey geezerglide.  I am looking at Short Block Charlies 103 head modification also.  I saw a posting by him a while back and he said it would be somewhere in the $700 range.  Is this in the ballpark?  I am very interested in your rusults in that motor.
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