360 mopar oiling - Page 2

older racer · 10-17-2018, 12:01 AM

we use a smaller filter, ph 43, adds oil to pan. 5 1/2 quarts. total. no issues/ also,full groove mains.

CMcAllister · 10-17-2018, 12:41 PM

I've run stock crank 360s to 7300-7400 in a non-Stock application with multiple style big pans, cross-drilled crank, accu-sump, System 1 filter, big pump, 002-0025 clearance, etc. etc. and still knocked the bearings out of it. The issue is getting oil on the crank and keeping it there instead of being bled off to other places, like the left galley, and the cam and heads. You have to fix the block, specifically the oiling system, and keep the oil on the crank. Some of the stuff I've done isn't legal for Stock. Are bushed lifters and/or non-OE plumbing in the lifter valley legal?

tstickff · 10-17-2018, 01:30 PM

If you use a windage tray take it out, same with a crank scraper, and the biggest difference you can do is use the oil accumulator, i had the same issue until i used the oil accumulator.

Tim

Ed Wright · 10-17-2018, 03:11 PM

Quote:

Originally Posted by devo340

2.5-3 clearance
rod journal 2.125
main - 2.80

Should be plenty. I use a min of one thou per inch journal diameter.

cummins · 10-17-2018, 06:49 PM

Quote:

Originally Posted by devo340

Std pressure pump.
Feed to the rocker shafts restricted.
Maintains 65PSI @ idle, 70PSI @ 7100RPM

Lots of good information here. You may want to consider installing a 15 lb. pressure switch coupled to the ignition to kill it in the event of a low pressure situation. CMcAllister is correct. At your clearances if that is what they are, at 40lbs of oil pressure, it would not hurt itself at 7000 RPM's. Keeping oil on it is the key. So as CMcAllister was saying, excess clearances and lifters/rockers, etc... add to low pressure situations. So a low pressure switch hooked to the ignition, will be a safeguard. Hope this helps.
Thanks,
Vance

herbjr · 10-18-2018, 01:10 AM

Send me your email address, My dad did a ton of testing when the X block was developed, I have a list of stuff to drill out on the block. If you would like to talk to Herb hisself I can get him in touch with you. Herbieamccomedy@gmail.com Google A engine oiling mods herb mccandless. It may still come up. We drill almost every internal passage in the block.

CMcAllister · 10-18-2018, 12:30 PM

Drilling passages to the mains, opening passages in the rear of the block, port matching the pump to the cap, massaging sharp corners, tubing the block (once, what a mess, just bush the bores), even fabing a dual pickup assembly were among the first things I tried. While they are, without doubt, beneficial, It didn't address the core problem, which is keeping oil on the journals in question. Measuring oil pressure at the port on the rear of the block tells you nothing about what is happening to the pressurized oil once it gets to the #2 and 4 mains.

CMcAllister · 10-18-2018, 12:44 PM

As a side note, we ran stock bottom end, steel crank 340s to 7800 for a long time with none of these issues. Cut an iron 360 crank for in a 340 block to get some cheap stroke, and almost right away, spun a bearing and broke the rod. Put a new stock bottom end 360 together and have the same issue, although I paid attention to it and would fix it as needed rather than blow it up. Something about the increase in stroke and the iron crank that doesn't like to be spun beyond about 6800. Some folks get away with it for some reason.

devo340 · 10-18-2018, 09:27 PM

Quote:

Originally Posted by herbjr

Send me your email address, My dad did a ton of testing when the X block was developed, I have a list of stuff to drill out on the block. If you would like to talk to Herb hisself I can get him in touch with you. Herbieamccomedy@gmail.com Google A engine oiling mods herb mccandless. It may still come up. We drill almost every internal passage in the block.

Thanks, I'll send him a email.

Coleydog · 10-20-2018, 12:53 AM

I read, or heard, somewhere that the mopar crank oil feeds holes are drilled in the wrong place.?? Rod or main, can't remember. But I'm thinkng the full groove main bearing would solve the main holes.
It was said to copy a SB Chevy crank, they seem to have no problem with this issue.
I'll compare as soon as I can get my hands on one.
Mike

10-17-2018, 12:01 AM	#11
older racer Member Join Date: Aug 2010 Posts: 212 Likes: 13 Liked 68 Times in 26 Posts	Re: 360 mopar oiling we use a smaller filter, ph 43, adds oil to pan. 5 1/2 quarts. total. no issues/ also,full groove mains.

10-17-2018, 12:41 PM	#12
CMcAllister Senior Member Join Date: Sep 2006 Location: Fulton County, PA Posts: 614 Likes: 16 Liked 920 Times in 259 Posts	Re: 360 mopar oiling I've run stock crank 360s to 7300-7400 in a non-Stock application with multiple style big pans, cross-drilled crank, accu-sump, System 1 filter, big pump, 002-0025 clearance, etc. etc. and still knocked the bearings out of it. The issue is getting oil on the crank and keeping it there instead of being bled off to other places, like the left galley, and the cam and heads. You have to fix the block, specifically the oiling system, and keep the oil on the crank. Some of the stuff I've done isn't legal for Stock. Are bushed lifters and/or non-OE plumbing in the lifter valley legal?

10-17-2018, 01:30 PM	#13
tstickff Member Join Date: Mar 2009 Posts: 469 Likes: 308 Liked 561 Times in 138 Posts	Re: 360 mopar oiling If you use a windage tray take it out, same with a crank scraper, and the biggest difference you can do is use the oil accumulator, i had the same issue until i used the oil accumulator. Tim __________________ Tim Stickles

10-18-2018, 01:10 AM	#16
herbjr VIP Member Join Date: Apr 2005 Location: Greensboro NC Posts: 1,027 Likes: 1 Liked 83 Times in 32 Posts	Re: 360 mopar oiling Send me your email address, My dad did a ton of testing when the X block was developed, I have a list of stuff to drill out on the block. If you would like to talk to Herb hisself I can get him in touch with you. Herbieamccomedy@gmail.com Google A engine oiling mods herb mccandless. It may still come up. We drill almost every internal passage in the block.

10-18-2018, 12:30 PM	#17
CMcAllister Senior Member Join Date: Sep 2006 Location: Fulton County, PA Posts: 614 Likes: 16 Liked 920 Times in 259 Posts	Re: 360 mopar oiling Drilling passages to the mains, opening passages in the rear of the block, port matching the pump to the cap, massaging sharp corners, tubing the block (once, what a mess, just bush the bores), even fabing a dual pickup assembly were among the first things I tried. While they are, without doubt, beneficial, It didn't address the core problem, which is keeping oil on the journals in question. Measuring oil pressure at the port on the rear of the block tells you nothing about what is happening to the pressurized oil once it gets to the #2 and 4 mains. Last edited by CMcAllister; 10-18-2018 at 12:34 PM.

10-18-2018, 12:44 PM	#18
CMcAllister Senior Member Join Date: Sep 2006 Location: Fulton County, PA Posts: 614 Likes: 16 Liked 920 Times in 259 Posts	Re: 360 mopar oiling As a side note, we ran stock bottom end, steel crank 340s to 7800 for a long time with none of these issues. Cut an iron 360 crank for in a 340 block to get some cheap stroke, and almost right away, spun a bearing and broke the rod. Put a new stock bottom end 360 together and have the same issue, although I paid attention to it and would fix it as needed rather than blow it up. Something about the increase in stroke and the iron crank that doesn't like to be spun beyond about 6800. Some folks get away with it for some reason.

10-20-2018, 12:53 AM	#20
Coleydog Senior Member Join Date: Jul 2014 Posts: 569 Likes: 36 Liked 53 Times in 38 Posts	Re: 360 mopar oiling I read, or heard, somewhere that the mopar crank oil feeds holes are drilled in the wrong place.?? Rod or main, can't remember. But I'm thinkng the full groove main bearing would solve the main holes. It was said to copy a SB Chevy crank, they seem to have no problem with this issue. I'll compare as soon as I can get my hands on one. Mike