So if I understand this thread correctly, this "cap" cannot be installed from the top of the engine! It must be installed from the bottom? I am having the same problem, on a 340. No one has been able to figure out why the lifters rattle.
Ok now we are confused. 68 gts said you can put this plug in from the top. Who is correct?
Sorry if I confused the issue, that drive in welsh plug, cap, needs to be installed from the bottom with the #5 main cap off the block I believe, I've never had to reinstall one in any SB Mopar I've ever worked on
It makes all the oil from the oil pump go through the oil filter instead of going straight up that oil passage directly to right side lifter
