Re: magnum heads fit onto '91 360??

From: Gary Shook (gary.shook@wcom.com)
Date: Wed Jul 21 1999 - 16:43:23 EDT


Mopar performance makes a magnum intake (fits Magnum heads) that takes a
single 4-barrel... could also take a Pro-jection or similar throttle body
injection setup. but pre-Magnum and Magnum intakes are not interchangable
without reworking the intake bolt holes... pre-mags run perpendicular to the
intake surface of the head, while Magnum intake bolts run vertical. only
other issue is the valvetrain oiling... pre-mags run oil through a passage
in the head, and the rocker arm shaft... Magnums run oil through the
pushrod, so your lifters would have to provide oil... I don't know if Magnum
lifters would fit a '91 block... if they do, that should work... if they
don't I think you need AMC lifters...

I do remember that they picked up significant HP with the Magnum heads...

Gary Shook

>they will fit but: The magnum uses hollow rods that oil the heads, while
>the premag uses a different method to get oil to the valvetrain and
>heads. You have to get the whole head from a magnum... rods, valves,
>springs, everything... also, on magnums the bolts go in at a different
>angle. I'm not sure exactly how it works, but I know some drilling is
>required....
>
>it CAN be done, as a matter of fact, Terry Delong at ProGlass did it...
>I've heard about HUGE gains from this mod....
>
>just remember, you'll need a new computer and all the injectors and all
>that stuff.. you may be better off just swappin' haeds and keepin' the
>premag-style intake...
>
>-mike d.
>
>
>On Sun, 18 Jul 1999 19:47:59 PDT mike kulczycki <dakota1994@hotmail.com>
>writes:
>>so does anyone know for sure if the magnum heads and intake will fit??
>>i
>>want to build a magnum 360 for my dak in a few years, and this might
>>be a
>>good starting point... or would it be better to buy a newer one??
>>mike k
>>'94, slt, cc, v6, 2wd, stuff...
>>
>>
>>>From: Doug Myers <dougmyers@radix.net>
>>>Reply-To: dakota-truck@buffnet.net
>>>To: Dakota Mailing List <dakota-truck@buffnet.net>
>>>Subject: DML: 360 shortblock for sale
>>>Date: Fri, 16 Jul 1999 00:57:26 -0400
>>>
>>>Hey guys,
>>>
>>> I'm cleaning out my garage and have a '91 360 shortblock from a
>>Ram
>>>that
>>>I'd like to sell. It ran when I bought it. I just wanted it for the
>>>swirl-port heads for my 'cuda. I'm pretty sure the Magnum heads and
>>intake
>>>will work on this motor, you just need to use the magnum valvetrain
>>>(pushrods, rockers, etc.) as well. I'm located in Clinton, MD near
>>>Washington, DC if anyone's interested.
<snip>



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