Davco
Well-Known Member
I’ve been unsuccessful in finding new/nos replacement parts for Mopar Magnum Crate 300 and Crate 380. Has anyone here stockpiled?
Where have all the Magnum parts gone?
- Thread starter Davco
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Bobzilla
Well-Known Member
Most of the parts in those were stock Magnum casting block, heads, and crankshaft, with stock rods, rocker arms, pushrods, etc. the 300hp version even had stock pistons and, I think, stock camshaft.
What kind of parts are you looking for, as an example? Most of it has to be sourced with aftermarket replacement parts or aftermarket upgrade parts.
Davco
Well-Known Member
A few items I have been searching for:
MAGNUM HYDRAULIC ROLLER CAMSHAFT:
P5249663 (300hp)
P4876348 (380hp)
HEAVY DUTY VALVE SPRINGS:
P4876062 (300hp)
MAGNUM ROLLER TIP ROCKER ARM SET:
P5249800
MAGNUM PORTED CYLINDER HEAD ASSEMBLY:
P4876257
MAGNUM R/T CAST IRON CYLINDER HEADS:
P5007140
P5007141
P5007145
ALUMINUM MAGNUM CYLINDER HEADS:
P4876624
MAGNUM ROCKER ARM SET:
P4876050
M1 DUAL OR SINGLE PLANE INTAKES
Hard to find anything…
I agree on the MP intakes. They don't seem to come up for sale very often.
The Magnum engines haven't been made for 22 years, plus, the MP pieces haven't been made for longer than that. There isn't much left.
Have you tried a parts wanted ad?
TT5.9mag
Two atmospheres are better than one
Both crate engines (300 and 380) used factory long blocks with the same blocks, cranks, rods, pistons, and cylinder heads. The 300 had a stock truck camshaft and a dual plane M1. The 380 had a larger roller cam and a single plane m1. Both were rated with 750cfm carbs.
TT5.9mag
Two atmospheres are better than one
Any reasons you’re looking for specific mopar crate engine parts? Most of the stuff you’re looking for has been replaced by better aftermarket stuff now.
Davco
Well-Known Member
Right. Basically no good reason other than putting the 300hp purchased in 1997 back to as shipped specs. I still have the blue crate for it. The 380hp version I acquired in early 2000’s is a “short block” now… the top end was sold years ago. I’d like to restore/rebuild both with MP products as delivered. I know- weird… but it’s nostalgia to me and a challenge.
Davco
Well-Known Member
Yes sir
Bobzilla
Well-Known Member
Be patient and some of those items will show up for sale. Lately it seams like sellers think these parts are made of solid gold. Good luck with your plans.
TT5.9mag
Two atmospheres are better than one
As good a reason as any. The 300 is a stock long block plucked straight from the assembly line with an m1 dual plane, (I just sold one to @volaredon not long ago). Those are up for sale here once in a while. So that one should be easy.
For the 380 crate you’ll need a factory set of magnum heads, whatever valve springs they used for the bigger cam, the cam itself (I think comp still sells a version of that cam) and an M1 single plane. I haven’t seen one of those in a long while. Probably harder to find than the dual plane.
My intake isn't for sale but I could use another, Id like the other version this time with the offset thermostat, I know that member Jadahrabi (sp?) RIP. Showed a pic of one shortly after I got mine... I wonder what's gonna become of his stash... Or if whatever was going to happen, has already
Is this the one that you are thinking of?
The single plane in my photo above is the later offering from MP evident by the t/stat. It's MP P5007380AB, over the counter.
Was this intake used (installed on) on the later 380 crates? (Paging Zippy lol)
My 380 crate, shown below, purchased in 1998 shortly after they were announced has the earlier t/stat.
Was this intake used (installed on) on the later 380 crates? (Paging Zippy lol)
My 380 crate, shown below, purchased in 1998 shortly after they were announced has the earlier t/stat.
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Earlier this year I rebuilt my 360/380 magnum with a stroker kit, TF heads, Eddy RPM intake, PRW rockers, etc.
Sold almost everything to another FABO member.
Still have the magnum con rods and stock bore pistons. Shoot me a PM if you're interested.
Hope this works. I don't see Jadahrabi" pic just a link to it that I now can't open. I have an M1 like Jadahrabi shows and then there's this one. Both taken from a thread "a page down" by "six barrel Bill" about running v belts on a magnum.
I may have to find one like the 2nd pic due to wanting AC on this build and 80s truck brackets possibly not wanting to work on the first one.
Ford small blocks and Chevy small blocks (not LS please don't start on those, I want nothing to do with them)! haven't been built in even longer yet stuff is still a dime a dozen for them...
Something that's always pissed me off.... As in how many people don't even acknowledge Mopar exists
340six
King Of Bling
So you wont help with my Challenger vert with an LS and 4L60e plan.
Maybe DTM can......
340six
King Of Bling
Yes the above was a joke. But a lower cost beaker Dart or Duster in mint shape, with Tesla drive line would be a great everything car for a great driver. As long as it had a reasonable range. Torque would be fun in every day use.
Bobzilla
Well-Known Member
The links both worked. His shows the Magnum intake bolt pattern with LA thermostat and bypass hose and mine shows the Magnum intake bolt pattern with Magnum thermostat and bypass hose locations. I know in the single plane versions they also had LA intake pattern with Magnum thermostat and bypass hose locations. There were some interesting parts available for a short time.
The GM and Ford stuff is STILL available new from GM Performance and Ford Motorsport. Their popularity justified keeping some of those parts in the catalogues long after they were used in any production vehicle. Chrysler always discontinued parts as soon as they could. It's a shame really, because the M1 single plane intake was a really good part and back around 2000 they were only about $199 or so. Now some clown has one on ebay for $1500. It's not worth anywhere near that much, but you never know what someone will be willing to pay so they get posted like that.
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