Ford A460 roller cam bearings

Going through the ordeal and had my block machined for roller cam bearings. Getting ready to put it all back together again, and reading the instructions for the bearings, they say to tap and plug the oil feed holes feeding the cam journals. Is this really necessary? I understand the roller bearings will be lubricated by "splash" oiling, but with the solid cage, the oil feed hole is covered, so why the extra step and plug the feeds? The only one that would possibly have an issue is the front that is cross drilled into the main feed anyway. Just wondering what you guys have done.

I'VE NEVER PLUGGED MINE



ACE

didn't plug mine either, but its an A460 block, May want to look at the factory oiling system and see if it needs it for some reason.

Kjett,

1. No need to tap and plug the oil feed holes to the cam bearings.

2. However, in the front bearing housing bore, you need to grind or cut a little slot to the front face of the block to lube the torrington cam thrust bearing. This is VIP.

3. I strongly suggest that you pull the bearings in with a set of custom made mandrels. Do not drive in the caged roller bearings with a hammer.

4. Always "pull" a caged roller bearing from the side of the bearing that has the part numbers and letters stamped on it. That side is thicker and stronger than the unmarked side.

Hope this helps,

Uncle Charlie

Thanks guys!

Charlie, I've already made a set of mandrel's to pull the bearings in with and cut the grooves to feed the thrust bearing and dizzy per the instructions. It just made no sense why the extra step to plug the feed holes, so I had to ask you guys why. Since I'm using a stock block, I was just concerned if Ford had a specific reason to do this step in their instructions. Thanks again!