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08-16-2004, 09:43 AM
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CC Member
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Join Date: May 2004
Location: Palm Coast,
FL
Cobra Make, Engine: Shelby American CSX 4241 - authentically built
Posts: 2,573
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Not Ranked
External oil drains?
Has anyone done this?
I still can't comprehend the fact that the FE has no oil return drains in the heads. What were the designers thinking!
In it's current form, I'd guess that the oil to the rockers just fills up the head under the valve covers, until it overflows back through the pushrod holes. If you run the factory oil drain pans, I would think that helps collect a little of it, but it still have to flow uphill.
So I was thinking about tapping the rear of the head at the bottom of the valve cover area, for some drail lines back to the oil pan. Has anyone done this? I'd think it would be a great idea, especially for a high rpm FE.
__________________
Sal Mennella
CSX 4241, KMP 357 - sold and missed, CSX 4819 - cancelled, FFR 5132 - sold
See my car at CSXinfo.net here >> CSX 4241
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08-16-2004, 11:31 AM
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CC Member
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Join Date: Jan 2000
Location: scottsdale,az,
Posts: 733
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Not Ranked
Sal, it depends. That extra oil can keep the springs cooler on the race track. If there are drops in oil presure at corners, the pan is dry. You can add drain backs which is what I did on my 351 heads at the rear. Drain backs and an accusump are cheaper than the best way which is dry sump. Good luck, Scott. |
08-16-2004, 02:58 PM
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CC Member
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Join Date: May 2004
Posts: 173
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Hi Sal , There are two holes , one in the front and one in the back , plus they put restrictors in to resrict the amount of oil going to the rockers . Let me know if you want me to stop by , I would pull a valve cover off ,show you the dove set up I got from George A. Guessford .
Sal let me know if you still may want that bell housing / plate .
I was on you dyno with the green car , John Martin |
08-16-2004, 03:33 PM
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CC Member
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Join Date: May 2004
Location: Palm Coast,
FL
Cobra Make, Engine: Shelby American CSX 4241 - authentically built
Posts: 2,573
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Not Ranked
Hey John, good to hear from you. Maybe the side oiler has return drains. I have a 428 CJ block here on my stand an there are no oil return holes in the deck of the block, nor are there any return passages if you look inside the block. As for the bell, I may still be interested in it.
__________________
Sal Mennella
CSX 4241, KMP 357 - sold and missed, CSX 4819 - cancelled, FFR 5132 - sold
See my car at CSXinfo.net here >> CSX 4241
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08-17-2004, 10:13 AM
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CC Member
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Join Date: May 2002
Location: San Francisco CA,
Posts: 525
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Sal,
The oil drains in the front and rear of the heads intersect with the outer upper head bolts and the oil passes past the bolts and into the lifter valley.
Not the best method, but it works OK.
Once you see the heads, you'll see what I mean.
--Mike
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They bend 'em, we mend 'em.
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08-17-2004, 06:17 PM
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CC Member
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Join Date: Jan 2002
Location: Northern California,
CA
Cobra Make, Engine: -Sold- Contemporary 427S/C # CCX-3152 1966 427 Med Rise Side Oiler, 8v 3.54:1 Salisbury IRS, Koni's.. (Now I'm riding Harleys)
Posts: 2,567
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Not Ranked
I have two retun holes in my 427 (front and back) as did my 428 before the 427.
__________________
michael
A man that is young in years, may be old in hours, if he have lost no time. But that happeneth rarely. Generally, youth is like the first cogitations, not so wise as the second. For there is a youth in thoughts, as well as in ages... Sir Francis Bacon (1561-1626)
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08-17-2004, 06:46 PM
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CC Member
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Join Date: May 2004
Location: Palm Coast,
FL
Cobra Make, Engine: Shelby American CSX 4241 - authentically built
Posts: 2,573
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Not Ranked
Well, there are no oil drain holes in the deck of the block. If there are drains at the top of the head, they are still useless. That means the oil still has to fill the head under the valve cover in order to get back into the crankcase, via the lifter valley. Other Ford V8s have drain holes in the bottom of the head with oil return passages through the sides of the block.
Think about this... if you poured oil into the top of the valve cover, and it didn't return into the block until it filled up and reached the upper part of the head, how much oil do you think would be under that valve cover? I'd say WELL over a quart, maybe even close to two. That means at any given time the motor is running, there is at least 3 quarts of oil in the heads. If you had a 7 quart system, you'd have 3 quarts in the head, 1 in the filter, that leaves you with 3 quarts in the pan to feed the motor next time you rev it to 6-7 grand. Sorry, I don't like that idea one bit  .
__________________
Sal Mennella
CSX 4241, KMP 357 - sold and missed, CSX 4819 - cancelled, FFR 5132 - sold
See my car at CSXinfo.net here >> CSX 4241
Last edited by Power Surge; 08-17-2004 at 06:58 PM..
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08-26-2004, 07:19 AM
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CC Member
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Join Date: Mar 2002
Location: Leamington,
Ont
Cobra Make, Engine: Classic Roadster with 427 center oiler
Posts: 443
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Not Ranked
Sal
Both of my FEs have oil return or drain back holes. One FE is a 406 the other is a 427 co. Check the pics.
The hole is the dark spot just to the left of the valve spring.
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life is short: eat dessert first !
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08-26-2004, 07:22 AM
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CC Member
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Join Date: Mar 2002
Location: Leamington,
Ont
Cobra Make, Engine: Classic Roadster with 427 center oiler
Posts: 443
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Not Ranked
This is the hole in the other end of the head.
Hope this helps!
Paul
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life is short: eat dessert first !
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