[<G Man>]

Owners of the late model Twin Cam 103, looking for affordable power, (Rushmore Bikes) want to upgrade their Cams. Many upgrades are on these models at the factory already, so some companies say you can put in a set of upgraded lobs without changing anything else. Yes just replace the Cams and nothing else. No bearings to push or rods to cut.

So for example, is it worth it to replace factory cams with TW222 Wood Cams, and nothing else at all?
Considering they are $400 and easy to pop in with a couple magnets or clips, do you really need to spend 2000 for a whole Zippers or S&S Kit / Package?

What "upgrades" are on at the factory?

What are "lobs"?

Yes, you "can" just replace the cams, but your question was whether or not it is worth it.

You don’t have to cut or change the push rods, I do it all the time with a paper clip. The question is, do you really have to spend any more than the Cams? If you do that stuff why stop there, you need oil pump, tensioners, a new cam plate and everything is better when you spend. Your answer is no then, you can’t just do the lifters alone. I appreciate your opinion. Not sure I disagree. Wood says you can do the TW222 all alone and publishes a pretty impressive Dyno.

I thought the question was about cams, not lifters.

Claims of doing "just cams" usually refers to the fact that they don't require any valve train changes, commonly referred to as a "bolt-in" cam. Upgrading cam bearings (upgrade from factory bearings) and installing a fresh set of lifters are always recommended. Adjustable pushrods are just a way to avoid the labor of re-using the solid factory pushrods, not necessarily an upgrade.

I would like to see your pics of the paper clip thing. I have never seen that done before.

 

[<G Man>]

Maybe he had this guy helping.