Basically, the current TC103 is to a TC96 as the older TC95 was to a TC88. Just a larger bore and pistons in the stage 1 street legal version. And just like with the TC95, it really isn't necessary to pay extra for new jugs. Just have the stock cylinders bored to the correct oversize, which is all H-D does with those jugs in the kits. So going to a 103 in the Limited or the Power Pack option basically cost H-D nothing; the cylinders don't cost them any more, and the pistons are existing off the shelf parts as well.
The 110 is a little more involved, as the cases have to be bored to accept the larger cylinder spigots, the heads are different, etc.
Jerry
Jerry, good morning.
Just to clarify your statement about the 88" - 95" - 103", I will be purchasing probably an '02 88" "B" motor for a Cyclecar project in the next 6 months or so. As I've been told, the '02 is the last year for the Timken as stock and it has the better crank. Although I understand that the better crank was used up and through '04.
I do want to start out with the 88" so I can debug my Cyclecar driveline etc, but would like to up the cubes for more torque. I have a new S&S Super E carb and will be running the Thunderheart standalone ignition system. Again, I'm not looking for lots or hp, but more grunt. I understand the Super E is good for cubes I'm looking to go up to.
So now to my question.
I've been told that to do the 95" I only need to bore out my stock 88" cylinders and use of course the appropriate pistons.
If I want to forgo the 88" and go right to 103", is this another overbore of the stock 88" cylinders or do I need to get new cylinders in the 103" bore? Pistons too of course...
If I stopped at the 88", I would probably just keep the stock 88" cam. But if I can go directly to the 103", is there a cam that might better supply the added cubes up from the 88"? Going up to the 103" is about a 15% increase in volume, so I'm guessing maybe the stock 103" cam would possibly be a good choice?
I would think used 103" cylinders could be had quite easily.
Thanks in advance.