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

273 said

I wouldn't bother with 340 manifolds to expensive. There barely and power difference over 360. Even 318 manifolds are within 5 hp. If you got cash or looking for stock 340 look.

Click to expand...

That's in part what I wanted to know. If using a set of 360 manifolds were close enough with lower cost. Thinking of buying 71 RR (no driveline) Want to install a 318/360. But did not know if I would need that special driver's side manifold to wrap around the steering shaft.