My 422 smallblock build
I shortened the pipe plug to .285” so I would not protrude into the oil passage leading to the #1 main. Drilled a .0625” hole in the center of the pipe plug to oil the timing chain with a steady stream of oil. Drilled a .250” hole in the cam retention plate to allow the oil stream to get through.
![7998F653-1B17-460C-BCD9-29EC4FBEDE87.jpeg 7998F653-1B17-460C-BCD9-29EC4FBEDE87.jpeg](https://www.forabodiesonly.com/mopar/attachments/7998f653-1b17-460c-bcd9-29ec4fbede87-jpeg.1715475049/)