very well, judging from that article... let me know if you're serious, and
I can get you a copy of the article... it had some specific solutions (like
lifters to supply oil through the pushrods)
>so you're sayin' that Magnum heads will work on a premag? Where's my
>catalog? =)
>
>-mike d.
>
>88, 6er, LE, 3.55, Slush-o-matic, headers, Flowmaster, TekStyle Tonneau,
>and more.
>http://www.geocities.com/MotorCity/Pit/1133
>miggitymike@juno.com
> "The only reason a Dakota will beat a Ranger is because of the
>engine"
> - Disgruntled Ranger Owner
>
>
>On Mon, 1 Mar 1999 11:25:47 -0700 Gary Shook <gary.shook@mci.com> writes:
>>The heads are interchangeable, but you must match the intake to the
>>heads..
>>the intake bolt holes go straight into the head (~45deg angle) on
>>pre-magnums, but on magnums they are vertical... Mopar Muscle did an
>>article
>>late last year that showed about 70 HP more by putting Magnum heads on
>>a
>>340...
>>
>>The valvetrain is also different... the pre-magnums used a oiled shaft
>>that
>>the rockers pivoted on, while the Magnum heads use a hollow pushrod
>>for
>>oiling, and use a rocker stud setup... so actually, the Magnum heads
>>don't
>>need oiling holes.. (they get oil through the pushrod)
>>
>>I also think that the pre-Magnum didn't use a roller cam (Magnum does)
>>and I
>>think they went from a dual-plane intake design to the keg-barrel
>>style the
>>Magnum uses
>>
>>I could probably find more exact descriptions if you like, let me know
>>if
>>this answers your questions adequately.
>>
>>Gary Shook
>>
>>>My '91 Ramcharger was a pre-mag motor. It had throttle body injection
>>(the
>>>magnums have multi port). The main difference is the heads. The way
>>the
>>>intake bolts to the heads is different, and I believe the oil
>>passages
>>>might not line up the same (not sure about this).
>>>
>>>----------
>>>> From: Dan Matthews <dakota_v6_89@hotmail.com>
>>>> To: dakota-truck@buffnet.net
>>>> Subject: Re: DML: RE: Premag vs. Mag
>>>> Date: Friday, February 26, 1999 6:29 PM
>>>>
>>>> Thanks for the horsepower comparison , but i was really wondering
>>what
>>>> made the Mag different from the Premag. What kinda component
>>differences
>>>> on the engine.
>>>
>>
>>
>
>
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