Oil Pump with 6 mounting bolts

[roadrunnerh]

Where can I find an oil pump for my Slant 6 that has the 6 mounting holes?

I know guys use the now more common 5 bolt deal and say they have no problems, but I had one leak on a '70 Satellite I used to own and don't want the trouble. It's enough of a pain to change out without dealing with a leak...

 

[805moparkid]

just drill the hole out in the pump for the 6th one... its cast into the pump just not drilled... and dont buy a new pump... rebuild an old one... or the gear will self destruct within 1K miles...

 

[roadrunnerh]

I suppose drilling would be an option. I'd prefer to find an NOS or older version with the 6th hole already there. I've never rebuilt one. I may end up installing a higher pressure spring.
Any other thoughts?

 

[805moparkid]

look up doug dutra on slantsix.org...

and i wouldn't run a hemi spring... i am and have about 70psi hot, thinkin of stepping down to something a little smaller...

 

[roadrunnerh]

Just a thought. How about cutting a couple rings off the spring to lighten it, much like a spring on a firearm?