i tried putting my new cam in my 440 yesterday but the dam thing wont fit. i put new bearings in it and the old cam will slide in but the new one wont. i pulled the bearings out one by one to see what one was stopping it and it was the back one. i measured the bearing installed and the cam and there the same size. the old cam is only .001 smaller and i goes in. i know i need 1-2 thousands clearance.
so what should i do to get it to fit maybe hone where the bearing sits so it dosent smash the bearing so much or hone some material out of the bearing?

 

Read something about this. Check here. Bottom of page on right. "WHy my cam wont turn". Good site for other reading too.
http://www.musclemotorsracing.com/muscle-mike-blog

 

That explained my problem and gave me a solution (back to the machine shop).
how do you find all this info i looked for a while and came up with nothing.

thank you

 

It's quite simple..THIS PLACE ROCKS.

 

Knowledge is POWER! Free your mind and your *** will follow! Nah..just dumb luck. Even a blind finds a nut once in a while!

 

I just had the same problem with my 440. I bought a comp thumper cam, machine shop installed new bearings but when I tried to slid it in it woould only go half way without force. I thought the bearings were installed wrong so I tried the old cam an it slid right in with no problem. I took both cams to the machine shop to have them checked and they verified that the center journal on the comp cam was 20 thousandths to big. I had them polish it down. Comp is getting slack on their QA.. Or should I say the Chinese!**^^%##.