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70 HP oil pan bolts

Posted By: fastmark

70 HP oil pan bolts - 02/06/09 03:30 PM

I am trying to restore a couple of 70 hp 440 motors and am short a few bolts The original ones are 5/16 and a little longer that a motor that does not have a windage tray. They have a number "23" on the head. Is there a source for those? What about the new one you can get from Ma Mopar/ I have not looked at the head but I know they are the longer version. They also have a nylon spot on the threads for locking I suppose.
Posted By: 62maxwgn

Re: 70 HP oil pan bolts - 02/07/09 01:39 AM

Quote:

I am trying to restore a couple of 70 hp 440 motors and am short a few bolts The original ones are 5/16 and a little longer that a motor that does not have a windage tray. They have a number "23" on the head. Is there a source for those? What about the new one you can get from Ma Mopar/ I have not looked at the head but I know they are the longer version. They also have a nylon spot on the threads for locking I suppose.




These are 5/16" from 1997.

Attached picture 5006376-bolts.JPG
Posted By: gtx6970

Re: 70 HP oil pan bolts - 02/07/09 02:01 AM

These ?

Attached picture 5006418-B-11467.jpg
Posted By: Paul Jacobs

Re: 70 HP oil pan bolts - 02/07/09 02:01 AM

The 23 marking is correct-try www.amkproducts.com
Posted By: fastmark

Re: 70 HP oil pan bolts - 02/07/09 06:33 AM

Those pics help. The new ones have the wrong markings on the top as I suspected. I dug through about 4 buckets of bolts looking for several nuts that I needed and found a stash of the correct "23" marked bolts that were the longer version. Now for the big question. Were all of the oil pan bolts the same? The reason I asked is because this 70 hp motor that I am building for my Charger was taken apart and had a cam, piston, and intake change. Some of the bolts were not correct. Three oil pan bolts were missing, but in their place I found some just a tad longer. Were they used in the back were the rear main seal cap was installed? Does any one know this one?
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