340 exhaust manifold questions
As long as they are straight, for $275.00 you will be stealling them.
As far as the 318,put them on. They work really well on a 318. Nice 2.50" dual exhaust,h-pipe,your favorite mufflers.
Also if you want to upgrade to a 340 or a 360, your exhaust will be done.
Been there done that.
Pic of a 318 I had with 340 manifolds.