i have a 440 im rebuilding and i just ordered a high volume oil pump and my question is do i need a bigger oil pick up or will the stock one be ok to run and do i need a stronger pump drive shaft?

any input would be greatly appreciated.

 

pump drive shaft should be OK i havent had a problem, the tube depends from manufacturers

 

With a high volume pump you must keep a close eye on your oil level. If it gets low your pan can get sucked dry when your motor is pushed hard with all the oil ending up on the top end of the motor and none in the pan.

 

Getsum, Is this a stock rebuild,or are you putting in any go fast goodies?

 

well the engine is a 73 so it had low comp. so i got srp flat deck pistions, im ganna get the stealth heads from 440source, i have a mild comp cam for it, im ganna upgrade the intake manifold and carb also.

if i get a deeper pan than i shouldnt have to worry about sucking the pan dry then right?

 

A deeper pan will definitly help. Some people get a deaper pan and then run it a quart low to gain a few HP by keeping oil spray off the crank. You add a windage tray if you don't already have one.

 

But wouldnt that negate the reason for a deeper pan to start with?

 

yeah im ganna get a deeper pan with a windage tray than il just have to be careful of driveways and bumps in the road. im ganna call melling and ask about the pickup tube. thanks

 

Since the motor is apart,I would get a hardened oil pump drive shaft to be on the safe side and replace the bushing while it's out,that's something that usually gets overlooked. With a deep oil pan you will need a longer pickup tube also. Good luck and have fun.

 

yeah i already had the new bushing put in when i had the block bored and hot tanked. i guess i gatta shell out more for a hardend pump shaft,a deeper pan, and longer pickup tube. who knew it was so expensive to rebuild a mopar...haha

 

If you replace a standard 5-6qt pan with a 8 or 10qt and run it a qt low you still end up with more oil. My engine builder recommends a high pressure pump over the high volume.

 

agree you can only run so much volume through the bearings. or get a high volume and make it high pressure, its pretty easy to do.

 

high volume moves more oil at the same pressure. A good thing. High pressure blows things like seals and in worse case bearings, out unless everything is new, as is this case here, everything should be fine. High pressure is for high out put motors, not slightly modified. I would go with the high volume pump and your stock pan should be just fine. These motors were engineered very well for the day and work fine as built. That being said, it's ultimately up to the individual.

 

"Danger Will Robinson!" Sorry, had to do that! Never really could get my head around the high volume/pressure debate. As long as there was oil in the pan, I thought things were ok. I see the point about high pressure re; blowing seals. But I thought that the role of oil is also to carry away heat. If it passes too quickly, would it not be able to absorb heat from the areas also? Sorry to go off-topic.

 

High volume pumps uses the high pressure spring as well as having a larger pump casting.

 

Scotts 74 birds
Where did you see Will? I've been looking for him.
I agree with you, no need for either unless, High volume, you have a tired motor and need to keep oil everywhere, High pressure, for extreme high out put race motors. Stock will work very good in anything else for a long time. I've seen em run for over 40 years. Top that with after market.