In a message dated 06-12-98 4:44:22 PM Central Standard Time,
stei0302@cs.fredonia.edu writes:
> At 11:04 AM 12/5/98 -0500, you wrote:
> >The stock MP Magnum casting can be had for around $119.00 ea. It utilizes
> the
> >1.92 int. & 1.625 ex. valves.
> >
>
>
> Are those the same size as the stock 318/360 valves? (i.e. would
> there be any benefit to bolting on those heads as is?)
>
> And speaking of which... What is the difference between a casting and
> a head? If someone were to buy a couple of the above casting to have
> them ported, what additional stuff would have to be purchased or done
> before they could be bolted onto the engine for some fun runs? :-)
>
Jon,
P4876256 is stock service replacement for 92-98 Magnum engines(360). I cannot
tell you for sure, but I think the 318 is 1.78/1.50 valve openings, and the
360 is 1.92/1.625.
The "casting" means it is a bare head, and you would need to install a new
valvetrain(valves,springs, locks, guides etc...). An complete head would be
cheaper to purchase than buying all the parts and putting it together. For
instance, P5249573(an assy 360 swirl port) runs for $595 a pair in Mancini's
catalog. At least thats how I see it in their flyer.
Gene
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