Replacing camshaft bearings

[Alex94TAGT]

Anyone done it -- using one of those arbor tools?

1) Don't suppose anyone knows the bearing sizes offhand -- I'm imagining the LT1 uses the same 3-size setup as a traditional SBC? 5th = 2.010", 4th-2nd = 2.000", 1st = 2.020"?


2) Also, I was looking at new bearings, and it appears they make cam bearings with needle rollers. Good/bad idea? Probably won't go this route due to overkill and machining costs, but thought it was a neat idea. Autozone sells the roller bearing kit.. for $95, which is considerably more expensive than standard bearings...

www.hotrod.com/techarticles/69618/

[94m6hardtopz]

we use roller cam bearings in the craftsman truck SB2. you block the oiling to them, they are splash oil only. if you are gonna put new cam bearings in one, just rebuild it. i dont know why youd wanna just replace the cam bearings.

[Alex94TAGT]

Thanks~

How do the roller bearings hold up over time, from what you've seen? Just curious...

94m6hardtopz said:

if you are gonna put new cam bearings in one, just rebuild it. i dont know why youd wanna just replace the cam bearings.

I'm not sure I follow you on the above. Who said I'm only replacing cam bearings? "Just rebuild" what -- the motor? I'm building a supercharged solid-roller 383 -- all the bearings will be replaced, not just cam bearings. My question in this thread was just regarding the cam bearings...

[94m6hardtopz]

they hold up good. ive never seen one come apart, we put about 3 races on our truck motors between freshenings.

i thought you were going to put cam bearings in a stock motor.