5.9MAGNUM EXH MANIFOLDS

Putting together a 273/4bbl, 340 spec solid cam, high compression motor for a '65 Dart. Was thinking of using the magnum factory style exhaust manifolds. Good idea? Need the magnum bolt kit or just use the LA studs/bolts?

There's not a big difference in power its up to you. Manifold and header shoot out, magnum are similar to 340 manifold performance, there another shoot out somewhere shows the best pair is one 340 and one magnum, forget which ones.

Installing Exhaust Headers Into 300hp Crate Engine - Mopar Muscle Magazine