so it could have been a kit car development? LD340 just had the larger 340 size ports that the LD4B. T/A heads were stock square port not sure why this got the T/A moniker? still cool as heck.
i don’t think the T/A label has any direct relationship to the 1970 Trans Am effort.
what is the casting date of the intake? (if there is one).
The 1970 T/A race heads did not have W-2 offset rockers and those special race heads had unique rectangular ports. They might have had the same casting number as street passenger car T/A heads. But they were not the same casting.
