Team Chevelle banner

Firewall tag and engine code, please help

696 Views 6 Replies 4 Participants Last post by  136679ss
Can Someone Please Help Decode This And Tell Me What I Have

Hello all, I am trying to decode the numbers on my firewall tags, they are

12 Detriot Michigan
ST 65 13837 Body BF 3536
TR 714 E Paint KKA
ACC A49 B70 15381

I know the engine is not original because it has a 454 in it, but the engine numbers are
GM T12
3999289 and on the other side of the fly wheel area it looks like ( L 4 either 78 or 73
1 - 1 of 7 Posts
3999289 1972-78 454 215, 235, 240, 270HP respectfully, 2 bolt, car & truck
The 289 block was also available with 4 bolt mains.
1 - 1 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.