you will need:

Magnum Heads
Magnum Head Bolts
Magnum Compatible Intake Manifold
Magnum Intake manifold bolts
Aftermarket/AMC type oil through pushrod lifters
7.650" length pushrods
Magnum rocker arms (these are different from the originals)
318 Cylinder Head Gasket
Magnum Intake Gasket (I recommend the edelbrock one)
Valve Cover gaskets (use "LA" gaskets for 5-bolt covers and Magnums for 10 bolt covers)
Exhaust Manifold or Header Gaskets

Auto cars will also need the kickdown linkage modified or replaced with a cable.

be sure to test fit the heads and pushrods and make sure that the pushrods have adequate clearance as they pass through the heads


'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip