340/360 exhaust manifolds A,B,C,E bodies the same ?

all 360 manifold styles were different based on A,B, or C Body.68-69 340 is one style, and is of the highest quality. The 1970 looks the same, has the same number, but is much cheaper looking. The 71-73 is another. The 71-73 340 manifolds will fit the A and B body,but resemble the 318 manifolds. By the smog years of 74, they changed again.