Author Topic: 7/16 Threaded Holes on Passenger Side of FE Block  (Read 4932 times)

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CV355

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7/16 Threaded Holes on Passenger Side of FE Block
« on: March 25, 2021, 01:11:03 PM »
While routing transmission cooler lines last night, I noticed two threaded holes in the lower passenger side of the 428 block.  They happened to be 7/16-14 thread.  Because I have headers partially installed, I couldn't get a good line of sight to see if this is something missing a plug for some reason, but it seemed to bottom out after about 3/4".  What are these actually for, and would there be any issue if I fabricated brackets for looming the cooler lines using these holes?

cjshaker

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #1 on: March 25, 2021, 01:21:50 PM »
I believe the holes were used for an engine cradle during assembly line work. Some cars do use them for cooler line attachment points, so that would work fine. The holes shouldn't penetrate through the block unless they were drilled out for some reason after leaving the factory.
Doug Smith


'69 R-code Mach 1, 427 MR, 2x4, Jerico, 4.30 Locker
'70 F-350 390
'55 Ford Customline 2dr
'37 Ford Coupe

CV355

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #2 on: March 25, 2021, 01:27:54 PM »
I believe the holes were used for an engine cradle during assembly line work. Some cars do use them for cooler line attachment points, so that would work fine. The holes shouldn't penetrate through the block unless they were drilled out for some reason after leaving the factory.

Awesome.  That'll make life easier for mounting the lines.  Thanks!

Phil Brown

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #3 on: March 25, 2021, 03:22:53 PM »
Had a 428 once that had the alternator low on the passenger side. There was a brace that attached to the lower alt. bracket and one of the holes that you are talking about. Don't know what year or model it was originally used on but it kept the alt really stable

GerryP

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #4 on: March 25, 2021, 03:49:37 PM »
Had a 428 once that had the alternator low on the passenger side. There was a brace that attached to the lower alt. bracket and one of the holes that you are talking about. Don't know what year or model it was originally used on but it kept the alt really stable

Thunderbird or other luxury, like a Merc.  They had extra NVH bracing for the alternator and A/C.

Gaugster

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #5 on: March 25, 2021, 04:37:45 PM »
I asked the same question a couple months ago. Some suggested it was used as mounting for trans cooler lines. Not sure but that's what I used them for to support my remote cooler.

http://fepower.net/simplemachinesforum/index.php?topic=9647.msg108470#msg108470
« Last Edit: March 25, 2021, 04:41:52 PM by Gaugster »
John - '68 Cougar XR7 390 FE (X-Code) 6R80 AUTO

cjshaker

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #6 on: March 25, 2021, 06:45:21 PM »
I asked the same question a couple months ago. Some suggested it was used as mounting for trans cooler lines. Not sure but that's what I used them for to support my remote cooler.

http://fepower.net/simplemachinesforum/index.php?topic=9647.msg108470#msg108470

There are vintage Ford pictures that show it being used as a cradle mount. I've seen several of them. Of course a Google search didn't come up with any, but they are out there.
Doug Smith


'69 R-code Mach 1, 427 MR, 2x4, Jerico, 4.30 Locker
'70 F-350 390
'55 Ford Customline 2dr
'37 Ford Coupe

thatdarncat

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #7 on: March 25, 2021, 11:21:28 PM »
I believe the holes were used for an engine cradle during assembly line work. Some cars do use them for cooler line attachment points, so that would work fine. The holes shouldn't penetrate through the block unless they were drilled out for some reason after leaving the factory.

Our member, and Ford Employee, Rod C. has answered the question multiple times on the various FE Facebook pages - like Doug said, the bolt holes primary purpose is for the fixture that transports the engine around the assembly plant. Secondary purpose is any of the various brackets Ford sometimes uses on some vehicles. You can see the fixture in action on some of the old Ford assembly line videos that are on YouTube, and we’ve sometimes posted links to in the past.
Kevin Rolph

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thatdarncat

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #8 on: March 25, 2021, 11:29:50 PM »
I believe the holes were used for an engine cradle during assembly line work. Some cars do use them for cooler line attachment points, so that would work fine. The holes shouldn't penetrate through the block unless they were drilled out for some reason after leaving the factory.

Our member, and Ford Employee, Rod C. has answered the question multiple times on the various FE Facebook pages - like Doug said, the bolt holes primary purpose is for the fixture that transports the engine around the assembly plant. Secondary purpose is any of the various brackets Ford sometimes uses on some vehicles. You can see the fixture in action on some of the old Ford assembly line videos that are on YouTube, and we’ve sometimes posted links to in the past.

Here’s a link to a good old Ford assembly line video, shows early FE camshafts (thrust button style) being cast, and the FE engine blocks being cast, machined, assembled and tested. By about the 2:50 mark the engine block is attached to the fixture for further transport around assembly.

https://m.youtube.com/watch?v=e_aRxkRCXD0
Kevin Rolph

1967 Cougar Drag Car ( under constuction )
1966 7 litre Galaxie
1966 Country Squire 390
1966 Cyclone GT 390
1968 Torino GT 390
1972 Gran Torino wagon
1978 Lincoln Mk V

475fetoploader

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #9 on: March 26, 2021, 02:07:02 AM »
That is so cool to watch!
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CV355

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #10 on: March 26, 2021, 06:33:17 AM »
I believe the holes were used for an engine cradle during assembly line work. Some cars do use them for cooler line attachment points, so that would work fine. The holes shouldn't penetrate through the block unless they were drilled out for some reason after leaving the factory.

Our member, and Ford Employee, Rod C. has answered the question multiple times on the various FE Facebook pages - like Doug said, the bolt holes primary purpose is for the fixture that transports the engine around the assembly plant. Secondary purpose is any of the various brackets Ford sometimes uses on some vehicles. You can see the fixture in action on some of the old Ford assembly line videos that are on YouTube, and we’ve sometimes posted links to in the past.

Here’s a link to a good old Ford assembly line video, shows early FE camshafts (thrust button style) being cast, and the FE engine blocks being cast, machined, assembled and tested. By about the 2:50 mark the engine block is attached to the fixture for further transport around assembly.

https://m.youtube.com/watch?v=e_aRxkRCXD0

Oh, that was awesome!  I've been in the automation industry for 16 years now, and I always find it impressive to see the older sequencer-based systems.  Those multi-spindle machining centers, power and free, and chain-drive systems are actually very similar to how those processes are still done today.  In fact, I've designed some of the systems for assembly and testing of various engines and components over the years. 

I appreciate the info in the thread guys!

Gaugster

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #11 on: March 26, 2021, 07:39:09 AM »
Cool video for sure. I was reminded of an old saying I have. "Every car that rolls off the assembly line on its own power is a miracle." More applicable today with all the electronics  etc... Complex assembly lines like these are truly an engineering marvel. Watching robot arms flip window glass or motors around like they're weightless is mesmerizing.
« Last Edit: March 26, 2021, 07:43:39 AM by Gaugster »
John - '68 Cougar XR7 390 FE (X-Code) 6R80 AUTO

turbohunter

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #12 on: March 26, 2021, 08:06:26 AM »
What strikes me is the difference/care/love/fanaticism in the engine assembly today versus the slapping together of an engine in the plant. Awesome just to watch them slam pistons in.
Obviously we want more out of the engine but still.
Coincidentally this popped up just now in my wife’s Instagram dealy.


« Last Edit: March 26, 2021, 08:08:54 AM by turbohunter »
Marc
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Gaugster

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #13 on: March 26, 2021, 08:56:42 AM »
What strikes me is the difference/care/love/fanaticism in the engine assembly today versus the slapping together of an engine in the plant. Awesome just to watch them slam pistons in.
Obviously we want more out of the engine but still.
Coincidentally this popped up just now in my wife’s Instagram dealy.


That's a lot of Ponies!
John - '68 Cougar XR7 390 FE (X-Code) 6R80 AUTO

CV355

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Re: 7/16 Threaded Holes on Passenger Side of FE Block
« Reply #14 on: March 26, 2021, 10:13:30 AM »
What strikes me is the difference/care/love/fanaticism in the engine assembly today versus the slapping together of an engine in the plant. Awesome just to watch them slam pistons in.
Obviously we want more out of the engine but still.
Coincidentally this popped up just now in my wife’s Instagram dealy.



Haha, I saw that part of the video- the operator was launching a ring compressor on and whacking the piston in with a dead blow without even looking at it. 

There is a lot more precision in today's automation systems for sure, but I sometimes have to wonder if it's all necessary.  I've seen companies spend hundreds of thousands of dollars extra on systems, inspections, etc that really don't even seem all that necessary, just because a quality engineer said to do it.  Is there logic behind it, absolutely.  Could it be resolved if you could trust your operators more?  Yes.  I can automate anything you want, but it costs a lot of money to do so, and someone always ends up paying for it (the end consumer).  I would not be surprised if ~10% of a vehicle's cost of production was the costs of operator hand-holding systems integrations.  A "pick to light" system for a simple pre-painted front bumper bracket (light turns on, operator picks from that bin...) might cost upwards of $300k plus the controls system.  Everyone makes profit along the way to the dealership, so it really adds up.