Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 02-25-2021, 10:56 AM   #1
36coupe
Senior Member
 
36coupe's Avatar
 
Join Date: Oct 2012
Location: NovaScotia
Posts: 575
Default Prewar heads on a 8BA

Is it possible to run pre war heads on a 8BA. I figured material would probably have to be removed above the valves.
Thanks
__________________
Regards,
Lindsay
36coupe is offline   Reply With Quote
Old 02-25-2021, 12:51 PM   #2
Bored&Stroked
Senior Member
 
Bored&Stroked's Avatar
 
Join Date: Jan 2011
Location: Central Ohio
Posts: 3,025
Default Re: Prewar heads on a 8BA

Yes, really not a big deal other than one extra water hole (on the passenger side of the block deck surface) that will need to be threaded and a plug put in.

You'll need to use 39-48 head gaskets. The water flow is a bit different - the 59AB heads were designed to take more water up through the middle water passages, while the 49-53 heads were designed to take up more water in the rear of the block. This was done to cool the rear cylinders more in the 49-53 era. Plenty of guys have put early 39-48 heads on 49-53 blocks and 49-53 heads on 39-48 blocks - so it is nothing new.

Now, if you plan to run the 49-53 timing cover and distributor, then you have to come up with a way to lock the distributor down - as it was a part of the 49-53 head. Not a big deal either - just something to note.
Bored&Stroked is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 02-25-2021, 02:04 PM   #3
19Fordy
Senior Member
 
19Fordy's Avatar
 
Join Date: May 2010
Location: Coral Springs FL
Posts: 8,705
Default Re: Prewar heads on a 8BA

Sponsored Links (Register now to hide all advertisements)
You can easily lock down the distributor by making a spacer ring that sets the distributer at it's stock height for the correct meshing with the timing gear. Then use a socket head cap screw NOT a set screw that might "fall in". Calculate the needed spacer thickness BEFORE you remove the stock head.
This 1/4 inch thick spacer was made for a Mallory dual point.
Attached Images
File Type: jpg IMG_4677b.jpg (38.0 KB, 49 views)
File Type: jpg IMG_4675b.jpg (57.2 KB, 48 views)
19Fordy is online now   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 05:31 PM.