Small Block Help

[Pana.Mopar]

Hi All,

Apologies if this question has been asked before...

What is the difference between early LA engines (318/360) and Magnum engines (360)...???

Are parts interchangeable between the two?

I've got a '76 Duster with a 318 and I've stumbled upon a 360 Magnum which I wouldnt mind rebuilding and slotting into the Duster. Only catch is I have already purchased a fair amount of new parts to build the 318 like:

Electronic Ignition (Dizzy)
Extractors
Water Pump
Pistons and Rings - 40 over
Melling Oil Pump
Felpro Gasket Set
Dual Plane Alluminium Intake
Cam, Rod and Main Bearings
Cam and Lifters ( I know these arent interchangeable)
and more parts...

If I could get any advice on which path I should take, what the differences are and what parts I can use for the Magnum that would be great!

Thanks again for assistance...

Pana from Down Under

 

[Keith Mopar]

Physically, the engine bolts in like any other 318/360, but you'll need a 360 pan from a '70s car application and the specific motor mounts for a 340/360 application for your year of A body. The intake manifold is different for the Magnum. and pistons you have won't work.
Distibuter and extractors (exhaust) are probable the only things that will bolt onto the magnum.
I'm sure there are guys on here with more info than I can give you, hopefully others will add to this for you.