Quote Originally Posted by 406Rich View Post
We`ll need pics to detemine if its a 350 or 400 first...
From the Corvette VIN codes it should be a turbo400 unless someone swapped in something else over the years...

1972 Corvette Transmission Codes

Code Transmission
P Muncie 4-Speed, Heavy-Duty Aluminum Case
A Muncie 4-Speed M20 Wide-Range (2.52:1 1st gear)
B Muncie 4-Speed M21 Close-Range (2.20:1 1st gear)
C Muncie 4-Speed M22 Close-Range (2.20:1 1st gear) Rock Crusher
K Turbo Hydra-Matic 400 with 350 Engine
S Turbo Hydra-Matic 400 with 454 Engine

http://corvettec3.ca/trans.htm