Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 07-14-2020, 12:06 PM   #1
Bob from Northport
Senior Member
 
Bob from Northport's Avatar
 
Join Date: May 2010
Location: 215 E. 6th Street Northport, Michigan 49670
Posts: 552
Default Head Torque Question

In Bratton's catalog, it specifies that the torque on a 5.5 to 1 ratio head should be 65lbs. I have been told to torque to 55 lbs.
Can anyone advise the correct torque for the head nuts on a 5.5 to 1 head???
Attached Images
File Type: jpg IMG_0922.jpg (69.8 KB, 21 views)
__________________
Bob from Northport
Northport, Michigan
Bob from Northport is offline   Reply With Quote
Old 07-14-2020, 01:15 PM   #2
Ruth
Senior Member
 
Join Date: May 2016
Location: Glide, Oregon
Posts: 613
Default Re: Head Torque Question

I have always used 55 ft/lbs with no problems. Routinely check mine. Snyder's recommends 55 ft/lb.

Add; I have a 5.5 head.
__________________
"Sometimes you really DO need to read the whole thread"

Last edited by Ruth; 07-14-2020 at 07:51 PM. Reason: Add verbage.
Ruth is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 07-14-2020, 01:58 PM   #3
Big hammer
Senior Member
 
Join Date: Jun 2014
Location: Land of Lincoln
Posts: 2,102
Default Re: Head Torque Question

My engine builder said to torque my 6.0 head 55 ft-lbs initially and re-torque 60 ft-lbs
__________________
Don't force it with a little hammer tap, tap, tap
get a bigger hammer tap done
Big hammer is offline   Reply With Quote
Old 07-14-2020, 04:35 PM   #4
johnneilson
Senior Member
 
Join Date: Jun 2010
Location: 34.22 N 118.36 W
Posts: 494
Default Re: Head Torque Question

I have heard many different tales of woe here.
Truth is that both 55 and 65 Ft# are correct.
55 ft# for clean lubricated fastener, 65ft# for dry assembly.

J
__________________
As Carroll Smith wrote; All Failures are Human in Origin.
johnneilson is offline   Reply With Quote
Old 07-14-2020, 06:35 PM   #5
Bill G
Senior Member
 
Bill G's Avatar
 
Join Date: Jun 2017
Location: Walla Walla, WA
Posts: 753
Default Re: Head Torque Question

I think the Ford factory specification was "Good and tight". Maybe "real tight" on a standard head and "Good and tight" on the police heads.
__________________
-Bill G
Member of Walla Walla Sweet A's Model A Club
Bill G is offline   Reply With Quote
Old 07-14-2020, 06:52 PM   #6
Benson
Senior Member
 
Benson's Avatar
 
Join Date: May 2010
Location: Snork Key
Posts: 2,087
Default Re: Head Torque Question

Sponsored Links (Register now to hide all advertisements)
I do not know about anyone else but I have used 55 foot lbs since 1963 on Police Head for the last 53,000 miles ... works fine.


ADDED: Have used Copper Coat and Victor or Best gaskets.

There is no need for 65 ft lbs ... this only distorts the upper deck of block and might strip out weak stud threads.



Just saying....

Last edited by Benson; 07-15-2020 at 07:55 AM.
Benson is offline   Reply With Quote
Old 07-14-2020, 09:32 PM   #7
Synchro909
Senior Member
 
Synchro909's Avatar
 
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 5,224
Default Re: Head Torque Question

I always use a sealer with the head gasket so I opt for the lower setting. 55 ftlb is all I have ever used and I've only ever blown one gasket but wasn't head tension that caused that one.
__________________
It is no burden to carry a little extra knowledge.
Synchro909 is offline   Reply With Quote
Old 07-15-2020, 05:08 AM   #8
Werner
Senior Member
 
Werner's Avatar
 
Join Date: Jan 2019
Location: Germany, near Aachen
Posts: 868
Default Re: Head Torque Question

909, please, what sealer did you use for the very hot head sealing?

Thanks!
__________________
Beste Gruesse aus Deutschland,
Werner


Ford Model A Roadster, 1928
Citroen 11 CV, 1947
Hercules NSU-Wankel Rotary Engine, 1976 (Canadian version)
Werner is offline   Reply With Quote
Old 07-15-2020, 05:32 AM   #9
Synchro909
Senior Member
 
Synchro909's Avatar
 
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 5,224
Default Re: Head Torque Question

[QUOTE=Werner;1909240]909, please, what sealer did you use for the very hot head sealing?

Thanks![/QUOTE

Werner, I have used Hylomar but I now have ABRO Copper Gasket Spray. It is an American product. There are several on the market and I'm sure there will be one available in Germany.
__________________
It is no burden to carry a little extra knowledge.
Synchro909 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 07:08 AM.