Hello everybody I am working on a 261 engine for a friend of mine how do I know if this engine needs to have the full flow oil system or not I am not too familiar with this motor right now it does not have anything and supposedly he was having a problem getting oil up to the rocker arms I will be headed to his place on Saturday morning to see if I could prime the oil pump and get oil to the top.
The engine has been rebuilt about four or five years ago and he just recently said it in his car and is trying to get it going but the guy who worked on it before told him no oil was reaching to the top it looks like the plugs on the side of the block under the intake manifold are plugged any help is really appreciated thank you