Quote:

BradH made me think of this question with his oil/bushing post..

What size hole do you drill into the lifter bushing on a RB block, when you're running a solid roller with pushrod oiling?

The oil passage from the #4 cam bearing has been blocked already..

I need to know what rocker system? T&D, Jessel or other?

Thanks in advance..



I had way more than enough oil on top for the rockers with the stock block. I pluged the oil holes in the head. I have only run it on the dyno but I had zero rocker issues.

What rocker system? T&D's, Jessel or other?

I have two .025" holes about 22.5* apart in a stock 400 block that is 498CID.

I have one .050" hole in my new KB block I just recieved.

The 498CID has run on the dyno for quit a while and it has had zero rocker issues.