Decode block mumber

J

JJHstang

5 Year Member

Sep 12, 2018

222

14

18

Fort Worth, TX

Mar 20, 2019

#1

• Mar 20, 2019

• #1

My 71 Mach1 originally had a 302 2V. It now has a 351 4V and I am just trying to find out what ever I can about it.
I found this stamped number which I believe is the block number D7TE-AA with a 6 stamped under it.
Can anyone decode for me? I have did some Google searches but looking for others information.

 

J

JJHstang

5 Year Member

Sep 12, 2018

222

14

18

Fort Worth, TX

Mar 20, 2019

#2

• Mar 20, 2019

• #2

Forgot to add the current engine is 351 W V4

 

J

JJHstang

5 Year Member

Sep 12, 2018

222

14

18

Fort Worth, TX

Mar 22, 2019

#3

• Mar 22, 2019

• #3

I made a mistake in my first thread. The number is raised casted and found on the water pump.

 

2Blue2

will be trying this sex one when I can find it

Mod Dude

Mar 5, 2019

4,450

2,917

163

Oahu

Mar 22, 2019

#4

• Mar 22, 2019

• #4

D7TE-AA

D=1970s
7=1977
T= truck line
E=part number released for engine division

AA= Change level of part, Number of casting changes from original. A-Z =26 so 26 +1 = AA or about 27 changes since this part was conceived

The 6 underneath I have no clue.
Lot of errors (wrong or missing) in casting numbers so take it with a grain of salt

Good luck and post a pic of your 71 I want to see her.

 

Reactions: JJHstang

J

JJHstang

5 Year Member

Sep 12, 2018

222

14

18

Fort Worth, TX

Mar 27, 2019

#5

• Mar 27, 2019

• #5

With all the hoses and belts, AC compressor I couldn't get a good look to see the difference in the pictures sent of 302 and 351. I did attach a picture of raised brand under my air cleaner.

 

Attachments

• Raised 351 brand.webp

  172.3 KB · Views: 159

Reactions: 2Blue2