mopar high volume oil pump doesnt fit

[ghetdjc320]

I am making a 4.2 mini striker using a 232 crank however it looks like the counterweights will hit the oil pump. Does the mopar high volume pump not work on this combination? I'm using the correct 6 weight crank. Thanks!

[woodjeep]

Unsure what the differences between the 232 and 258 crank are...I know the 258 crank cw clear the HV pump but the oil pan needs to be worked for clearance. I have an unused -new melling stock oil pump...I have to check if it includes the screen..let me see what's in the box . If you want to buy it...I'll give you a price once I find it this weekend

[Cheromaniac]

The Melling HV pump body interferes with the oil pan but a simple "adjustment" of the pan with a ballpeen hammer cures that. The crank counterweights should clear regardless of whether it's a 232 or 258 crank. The 258 crank has either 4 or 12 counterweights while the 232 crank has 8 counterweights like the 4.0 crank. I have the 12cw 258 crank and it clears the Melling HV pump without any issue.

[BDD]

I dont recomend running a high volume pump. I had to rebuild my motor because I ran one. The jeep distributor gear in not large enough to support a hi volume pump with out modifing the pump for less drag. Thats why hesco and 505 performence sell special pumps. Clifford 6=8 has a note on
the cover of there catalog from the 1960s warning people not to run a hv pump in a jeep inline.
I have run a melling hv pump in every motor I have ever built with great results, untill my jeep stroker. I ate three dist gears in 30,000 miles and all that metal went through my motor.

[SilverXJ]

Their pumps aren't really that special. They check the clearances and verify the pressure setting. Hesco does add a gear oiler to some of theirs.

[BDD]

Their pumps aren't really that special. They check the clearances and verify the pressure setting. Hesco does add a gear oiler to some of theirs.

You may want to talk to zach at 505 before you spread this nonsense. His pumps are " special"

Eithet way I wouldnt run a stock hv pump unless you want to be the next guy with missing cam lobes.

[SilverXJ]

You may want to talk to zach at 505 before you spread this nonsense. His pumps are " special"

You might not want to buy into his BS. After all we see how his engines, parts, support and service are here.

Eithet way I wouldnt run a stock hv pump unless you want to be the next guy with missing cam lobes.

How would a HV pump flatten cam lobes?

Many people run HV pumps and of that number very few have had issues.

[BDD]

You may want to talk to zach at 505 before you spread this nonsense. His pumps are " special"

You might not want to buy into his BS. After all we see how his engines, parts, support and service are here.

Eithet way I wouldnt run a stock hv pump unless you want to be the next guy with missing cam lobes.

How would a HV pump flatten cam lobes?

Many people run HV pumps and of that number very few have had issues.

I run nothing but 505 cams and have had nothing but great parts and service from 505.

The way a hi volume oil pump wrecks cam lobes is by putting to much drag on the distributor/cam gears. The gears wear quickly and the metal is thrown right at number 3,4 cam lobes.
Thick oil, tight clearences, and hi volume pumps dont like smallish dist gears.
If you do a little research Im sure you can find the right up from clifford performence from the sixties. I wish I would have read it before I built my first stroker.

I've built too many motors in my lifetime to buy into anyones BS... even yours. Before I built my first stroker I read and believed most everything you said . I have since read many of your posts that 30+ years of engine building dont agree with. If you have had bad dealings with 505 thats not my problem.
My guess is that most people who run a hi volume pump have looser clearences or run thin oil.

Maybe they wrecked a cam or two and still dont know why. Maybe they are just lucky.

[SilverXJ]

I've built too many motors in my lifetime to buy into anyones BS... even yours. Before I built my first stroker I read and believed most everything you said . I have since read many of your posts that 30+ years of engine building dont agree with. If you have had bad dealings with 505 thats not my problem.
My guess is that most people who run a hi volume pump have looser clearences or run thin oil.

Please, enlighten me where I have been so wrong. Or is that what 505 said because I don't agree with their BS? And there is no reason to run a thick oil, this isn't the 70s anymore and oil has come a long way since.

What is pretty funny is that most cam lobe failures shows no indication of cam gear/ oil pump drive gear failure.. or is the wear special like 505's pumps?

If you do a little research Im sure you can find the right up from clifford performence from the sixties. I wish I would have read it before I built my first stroker.

Once again, this is 2013, far from the 60s and machining process, bearings, oil, etc is a lot better now.

Maybe they are just lucky.

Or maybe there isn't a problem running a HV oil pump on the majority of builds.

So you say you don't run a HV pump, but then recommend a 505 "special" HV pump? The only BS here is from you and 505. If you have built so many motors as you say then you would see right through 505's BS, as well as be able to blue print and modify an oil pump on your own. From your experience as an "engine builder" you should then be aware that there isn't that much one can do to an oil pump to make it "special". You still haven't told me what is so magical about 505's oil pump.

[dwg86]

You may want to talk to zach at 505 before you spread this nonsense. His pumps are " special"

You might not want to buy into his BS. After all we see how his engines, parts, support and service are here.

Eithet way I wouldnt run a stock hv pump unless you want to be the next guy with missing cam lobes.

How would a HV pump flatten cam lobes?

Many people run HV pumps and of that number very few have had issues.

I run nothing but 505 cams and have had nothing but great parts and service from 505.

The way a hi volume oil pump wrecks cam lobes is by putting to much drag on the distributor/cam gears. The gears wear quickly and the metal is thrown right at number 3,4 cam lobes.
Thick oil, tight clearences, and hi volume pumps dont like smallish dist gears.
If you do a little research Im sure you can find the right up from clifford performence from the sixties. I wish I would have read it before I built my first stroker.

I've built too many motors in my lifetime to buy into anyones BS... even yours. Before I built my first stroker I read and believed most everything you said . I have since read many of your posts that 30+ years of engine building dont agree with. If you have had bad dealings with 505 thats not my problem.
My guess is that most people who run a hi volume pump have looser clearences or run thin oil.

Maybe they wrecked a cam or two and still dont know why. Maybe they are just lucky.

I ran a high volume pump on my engine with no problems (fresh engine with tight clearances, 10w30 oil). My jeep was running fine when I t-boned some moron who decided to turn in front of me when I was doing 60mph. My engine had 18,000 miles on it.