Stamping code on new head

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules

Topic author
Bmettli
Posts: 73
Joined: Thu Jan 17, 2019 8:46 pm
First Name: Brian
Last Name: Mettling
* REQUIRED* Type and Year of Model Ts owned: 1922 touring, 1933 Dodge
Location: Dayton, Ohio - Centerville
Board Member Since: 2013

Stamping code on new head

Post by Bmettli » Fri May 30, 2025 8:21 pm

Hi all,

I picked up a horrendous looking head at a swap meet last weekend for a mere $20. It looked fresh from a barnyard and even came with champion ford script plugs still in it. I let it marinate in Trisodium phosphate for the day and scrubbed the snot out of it. It came out a very very nice fresh casting! Very cool.

The marks on it are “11” near the top of the water inlet and stamped “15” on the inside of the water inlet. It is a high head. Any ideas what year? I assume that is Nov 15th?

Thanks
Last edited by Bmettli on Fri May 30, 2025 8:42 pm, edited 3 times in total.


Topic author
Bmettli
Posts: 73
Joined: Thu Jan 17, 2019 8:46 pm
First Name: Brian
Last Name: Mettling
* REQUIRED* Type and Year of Model Ts owned: 1922 touring, 1933 Dodge
Location: Dayton, Ohio - Centerville
Board Member Since: 2013

Re: Stamping code on new head

Post by Bmettli » Fri May 30, 2025 8:26 pm

picture resizing!
Attachments
IMG_1522.png
IMG_1523.png
IMG_1524.png
IMG_1525.png
IMG_1521.png

User avatar

DanTreace
Posts: 3812
Joined: Sun Jan 06, 2019 10:56 am
First Name: Dan
Last Name: Treace
* REQUIRED* Type and Year of Model Ts owned: ‘12 open express,'23 cutoff, '27 touring
Location: North Central FL
Board Member Since: 2000
Contact:

Re: Stamping code on new head

Post by DanTreace » Sat May 31, 2025 8:51 am

Typical casting letters or digits on high cylinder heads on the uppersurface over the water outlet are just casting tool identification numerals or letters. Helps to identify the casting tooling for control purpose.

Tiny mechanical stamped numerals on milled surfaces are always inspector's stamps, again for quality control.



Here are examples. They haven't any use in telling the age or time of fabrication.

IMG_8920 (520x390).jpg
IMG_8920 (520x390).jpg (103.05 KiB) Viewed 646 times
IMG_8919 (520x390).jpg
IMG_8919 (520x390).jpg (98.2 KiB) Viewed 646 times

This one casting letter is a fun one, a "Z".....but this is a factory Ford cast iron high head. Can confuse some who might think may be the Modern Alum Hi-Compression Zajicek made , Z Head, which is marked this same way.

IMG_1139 (500x367).jpg
IMG_1139 (500x367).jpg (87.18 KiB) Viewed 646 times
The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford


Topic author
Bmettli
Posts: 73
Joined: Thu Jan 17, 2019 8:46 pm
First Name: Brian
Last Name: Mettling
* REQUIRED* Type and Year of Model Ts owned: 1922 touring, 1933 Dodge
Location: Dayton, Ohio - Centerville
Board Member Since: 2013

Re: Stamping code on new head

Post by Bmettli » Sat May 31, 2025 11:11 am

Thanks Dan!

Post Reply Previous topicNext topic