96 318 magnum head swap on 91 318 pre-magnum engine?
 

i was wondering if it would be a hard job to swap out the heads on my 91 dodge ram to 96 magnum heads. because my heads are shot and have magnum heads but dont know if itll work or not. any helpful comments?

Gen 2 V8's would be Magnum motors.

Snippet from moparmusclemagazine:

Making the change to Magnum heads is a simple swap. All stock components can be used, however, Magnum engines oil the valvetrain through the pushrods as opposed to LA-style engines. Since all Magnum engines were equipped with factory hydraulic-roller camshafts, using the Magnum heads in conjunction with an LA block and a hydraulic flat tappet cam requires custom-length pushrods. Mopar performance sells a pushrod kit for this application (PN P5007477)

http://www.moparmusclemagazine.com/t...num_heads.html

Did they change the bolt pattern at the heads for the exhaust manifolds? Or did that remain the same from 91-96? :)

92-96 would be as that would be factory with the Magnum engine. 1991 is the regular LA motor I believe. As for the exhaust manifolds? I'm not 100% but I believe they are the same.

I realize 92 was the first year for the Magnums. The headers I'm looking at, the last year listed they fit is 91. I wondered if it had to do with a bolt pattern, or port pattern change. My wording for that was poor. Should be 91 vs 96 bolt pattern. I wasn't certain how far back the gen I's 318's bolt/port pattern went. :)

what about my 88, it has a roller cam. do i need custom pushrods or just magnum rods.

I am getting ready to install a flat tappet rv cam in my 1988 5.2 engine that has the roller cam now. Im curious what I will have to do about the pushrods in my application. Essentialy Im losing the roller cam for an older cheaper design.