I'm buying a house and it would be helpful to sell my car to keep the payments down. This is a factory drag race car. It is not street legal. It does not have a VIN or a title. It is serial number 15 out of 50 made. They did not come with a working speedometer. These cars were the first...
I think they're crazy. Sounds like something they would say if someone called and their mellonized gear went out. They would blame it on the HV pump. There must not be much load on it. When I prime a cold engine with a HV pump and cold 40 wt oil to 80 psi it barely stresses my Snap On battery drill.
A Hemi pan is supposed to fit an e-body since they came in there. I don't know if a Milodon pan would fit better. I think we've all seen people that had drag links that rubbed the pan so I understand. Maybe you should try the HV pump and see if it all works out for you. I really don't think it's...
20w50 is supposed to act like 20 weight when cold. You have to decide if you want to try the thicker oil first or the HV pump. That's a decision for you. Personally, I think our engines are 55 years old and even if they have been rebuilt, they have much larger clearances than they did in 1969...
I wouldn't worry about "sucking the pan dry". Get a M-63HV pump and put your pink spring in it. This should bypass around 55 psi and give you better hot oil pressure idling. If the 10-40 oil doesn't work you can try 20-50. We know your engine has a lot of clearance.
You said in your first post that you tried a high volume pump and it made no difference. I'm finding that hard to believe. I'm a B/RB oil pump guy. A HV pump is 1/4" thicker than a stock pump. Is that what you put on there? Last week I finished up a 383 rebuild. When I put it on the test stand...