what kind of trans came in the 74 350 turbo or 400 turbo???

 

One of my Corvette books says they started using the 350 in '76, so your '74 uses a 400.

 

I don't for sure the year they went to all 350's but in that range of years the small blocks normally had 350 TH and the big blocks used the 400. Also every big block car and truck used the 400 when the 400 was being built.

 

Mine has the 400, I think all of the 74's did, heres a link with more information http://www.web-cars.com/corvette/index.php PG