I have been told that the 2000 and 2001 Roadking had (I hope I am remembering this correctly) an almost guaranteed failure rate of the cam chain tensioner linkage and it was an inevitable 800 fix, Truth? Thanks, Frank

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Have you checked that the engine filter and all oil ways are clean & clear .Dirt and blockages can cause the bearings to not get enough oil .?

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Now, a lot of the questions you'v asked here should be asked of the people you are getting the engine from. I can tell you one thing and they could tell you something else. If I were selling a new engine to someone, it would have all the latest modifications on it. But, I don't sell engnes. You need to ask the engine builder about the chain tensioner.

As far as I know, your transmission should work with the new engine, you may have to "beef up" the clutch to hold the extra power. I've built 89" engines that put out 95 HP with 98 FT.LBs. of torque and had no clutch problems but your engine might be hotter.

As for the injection system, I know NOTHING about fuel injection. I'm an old school carburetor mechanic and know nothing about fuel injectors.

Does the engine come with a new ignition system. I'd put a high performance ignition system on an engine such as that one.

Good Luck
Steve

SOURCE: i've been told the cam

The answer is on the earlier 88 ci engines they're all different. They should be at least checked by 25k miles. There is an inner and outer tensioner. Both should be checked.
To Check:
1. Protect the surrounding area before you remove any parts, as a small amount of oil will spill out during this procedure.
2. Remove the cam cover, (careful of the cam position sensor wire, as it will be connected) and you will be able to swing the cover out of the way, and see the outer tensioner.
3. Gentle is the key here, as the tensioner spring is very tight, and the face is brittle and may break if it snaps back suddenly.
4. Use a small pry bar to gently pry the tensioner frame back (do not contact the tensioner as it will break) from the chain, and check it's condition. A small punch may be inserted thru the hole in the frame of the tensioner to hold it in the open position. There is a corresponding hole in the cam plate when aligned with the tensioner frame to accommodate the punch and hold it open.

Acceptable wear is defined as no visible groove in the tensioner.
Unacceptable wear is a medium groove, cracking or breaks in the tensioner.
Failure is visible metal thru the tensioner.

5. The inner tensioner can best be viewed with a flashlight, and an angled mirror (like a dental mirror) thru the top of the cam support plate, as it is located behind the cam support plate.
6. Same process as the outer, just more difficult to see. A punch can be inserted thru the cam support plate and past the tensioner frame to hold it open.