[mgonzo44]

I would like some information if you could. I have a 75 Trans Am 400/4sp, numbers match, except for, it has 4X heads and a 160 mph spedo. This was not offered in 75. Is this an early model, or what? VIN # 2W87S5N525369. The head has 4X D N J083 on it .. I have not torn down the engine yet to find any other numbers. The tag on the radiator cowl saws RL 400 GM 20K43. Any help would be great.

thanks, Mike

[mgonzo44]

I would like some information if you could. I have a 75 Trans Am 400/4sp, numbers match, except for, it has 4X heads and a 160 mph spedo. This was not offered in 75. Is this an early model, or what? VIN # 2W87S5N525369. The head has 4X D N J083 on it .. I have not torn down the engine yet to find any other numbers. The tag on the radiator cowl saws RL 400 GM 20K43. Any help would be great.

thanks, Mike

[Greg Reid]

Hi Mike, I'm new to this forum too and have had my '74 TA for just under a month now.
The numbers you mention on the head, J083 are the date code. J would correspond with October. 08 would be the 8th day and the 3 would indicate 1973 (or possibly 1983?) Not sure on that digit as I know nothing about decoding after 79.
Check this site out http://www.teufert.net/ and look at the menu on the left for ID numbers and part numbers.

Greg Reid
Palmetto, Georgia

[Reed '75_T/A]

Mike, if you want to downgrade for originality's sake, I have a set of virgin 5C's for you. They came off my running engine but need to be reworked. I'll trade you for your speedo too!

Only the dead have seen the end of war.