Internals are similar... rods, crank and the pistons are the same, but
your cam, lifters, pushrods, and rockers are different. Magnums have
a roller cam, LA blocks have a flat tappet cam. You can use the
roller cams in a LA block, but the lifters are pricey.
You can use magnum heads on a LA block, but you need to change your
pushrods and lifters. The LA blocks oiled the heads through the
block, but the magnums oiled the heads through the pushrods, so you
need the lifters and pushrods that have the oil passages in them.
Plus you'll need to run a magnum intake.
Gary
On Wed, Apr 13, 2011 at 6:17 PM, John Dunlap <jsdunlap@roadkill.org> wrote:
>
> Does the similarities hold tru for the standard 318 & the Magnum 5.2L V8 ? I
> was wondering about the internals. Rod journals, rods, pistons, etc. and
> what about the heads?? I understand the Magnum heads flow much better ?
>
> John
>
> On Wed, Apr 13, 2011 at 5:19 PM, Mike Sykes <mikesykes@cox.net> wrote:
>
>>
>> Does the '92 3.9 have a lot fewer miles than your '96? Basically all the
>>>>
>>> magnum engines are internally the same (with perhaps a cam difference,
>> depending upon the year). If you do this swap you will want to use your
>> '96 intake, throttle body, injectors and sensors as those are sure to be
>> different. The '92 exhaust manifolds would be a plus if they will bolt up
>> to your exhaust pipes. They were larger internally.<<
>>
>> The 92 block will work fine. All of the above info is good info. 92'
>> exhaust manifolds will not bolt up to a 96's Y-pipe because of their larger
>> diameter. It may just be easier to find out what's wrong with your 96 block
>> though.
>>
>> - miggity
>>
>> 00' R/T CC.
>> DMLer since 1996.
>>
>
>
-- Gary Hedlin Show Car Signs by Hedlin Designs www.showcarsign.com--Many talk about those who died, but too few talk about those who survived... THANK A VET!
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