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Was getting ready to assemble my engine and was going through the manual first and noticed the cam bearings needed to be reamed. I checked the ID on the new bearings and sure enough the diameter is too small for the cam to fit. Have talked to my machinist and all others withing a reasonable distance. None can (or are willing) to bore the bearings. Has anyone run into this? What did you do?

I don't think line boring cam bearings is a realistic option, either.

Did you check that you have the right bearings? I would not use NOS on any internal motor part.

You may have better luck getting the camshaft ground /polished to fit the bearings (again, if they are the proper ones and new manufacture). That's done all the time.

Yes the bearing are the correct ones but are NOS. I know most modern engines you do not have to size the bearings. What brand of bearing have you used? Did they have to be sized?

The camshaft was part of the Master rebuild kit, and the kit also supplied a set of cam bearings.. which were not used because I do not have the tool to remove/insert the bearings.

The machine shop that did the work bought a second set of bearings.. from the price (its in the Motor, Final Answer thread) was like $30... so they were standard run of the mill bearings.

A new set of cam bearings shouldn't run more than $30-40 + ship. Get the measurements for all 4 cam journals and call a place like http://www.cleggengine.com/ they should have the bearing dimensions that they sell.

New bearings will be MUCH CHEAPER than polishing a cam or line boring cam bearings. Every time I had a crank ground/polished its been $150-ish (again, the work order is in the Motor, Final Answer thread). Camshaft grinding/polishing is not much cheaper.