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FE Technical Forum / Re: Oil restrictors
« on: December 23, 2020, 02:57:45 PM »Thanks guys! This is all factory 427 LR with exception of pushrods, but they are not oilers.While you have the heads off get into the oil returns with a die grinder and open up the area at and around the head bolt. I've found that this area of the drains is restricted at the bolt shank. A little work with a carbide burr will do wonders to help the heads drain.
Brent I was thinking along the same lines on a blockage. I did shine a light back in the drain but should've tried to push a wire through while I had the covers off.
The topend has to come apart anyhow to change over to a 2x4 setup but trying to decide whether I need to tear into the bottom to change the pump or the spring.
Ross that is a good thought on the oil as it has 10w30 VR1, so maybe try the switch 20w50?