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99PurpleR/T
Unregistered
4/28/2001
01:42:47
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 Subject: 360 Magnum Crate Motor
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Just a thought-Since the carate motor has magnum heads and the sam block as the 5.9 R/T motor, could I buy a crate motor and put my existing manifold on it to get fuel injection?
theoretically, of course. Wouldn't want to be breaking any laws.
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95DakotaV8
*GenII*
4/28/2001
08:18:30
| RE: 360 Magnum Crate Motor
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High Performance Mopar did a recent article on a 360 crate motor install on a new Ram, need to find the article and I will post what it says.
Kevin Rants
95 CC SLT 4x4, 5.2L, 5spd
Family Man!
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RR
Unregistered
4/28/2001
21:21:22
| RE: 360 Magnum Crate Motor
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The Magnum crate motor is the same as what you already have except for the camshaft. Its just a rebuilt 360 truck motor with a crane cam (and different intake manifold) The 300 or 380 HP is gross rating (stock R/Ts 250 is net)
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Boomer
Dodge Dakota
JOIN HERE
3/01/2002
09:57:51
| RE: 360 Magnum Crate Motor
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I know that this thread is extremely old, but can some one post a link to the article mentioned by 95DakotaV8? Hopefully...
Boomer
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drtswinger
Dodge Dakota
JOIN HERE
3/01/2002
10:04:48
| RE: 360 Magnum Crate Motor
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I did soem research on dropping the short blocks or crate motors in our trucks. Basically, you wont have air conditioning, you will need to block off the fuel pump opening in the block, the distributor will need to be changed... I think. Basically it wont work unless you get the magnum mpi short block, but thats the same thing you already have if you have an r/t. Although, I did hear that mopar is coming out with a short block and crate stroker 360-408. whether its true or not, i dont knoe, but these will be direct fits for us. I got this from a big mopar racing guy who works at dodge.
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93dak
Dodge Dakota
JOIN HERE
3/01/2002
14:00:34
| RE: 360 Magnum Crate Motor
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i know a guy who has a r/t and he put a magnum 360 (380 hp) crate motor in his truck. he is from ct i am not sure if he is ever on this forum but i could see if he could post a message here.
he also runs 13.8s.
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jesse
Dodge Dakota
JOIN HERE
3/02/2002
03:30:15
| RE: 360 Magnum Crate Motor
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Why can't you run AC? That doesn't make since to me?
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sandman
Dodge Dakota
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3/02/2002
22:13:40
| RE: 360 Magnum Crate Motor
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Why not rebuild your engine with higher compression pistons and a more agresive cam. I am betting that Crowler makes a cam that is compatable with the computer system. You can port and polish the intake and exhaust runers, reshape combustion chaber and blend around valve seats. The intake can be ported, polished, extrude honed and gasket matched for better flow. With higher compression pistons, more agresive cam, better flowing heads and intake you will need better injectors and smother flowing throtel body. These things in conjuntion with a performance PCM will make alot of difference in throtel responce and power! You might also want to check out BERND's IAT adjuster!
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drtswinger
Dodge Dakota
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3/03/2002
22:47:32
| RE: 360 Magnum Crate Motor
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Im not sure why you cant run it, but in the catalog for it, it says *not for use with air conditioning*
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MikeD
Dodge Dakota
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3/04/2002
11:03:51
| RE: 360 Magnum Crate Motor
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More than likely people that buy those engines aren't buying them for everyday street use. Most drag racers don't want the AC pulling in a race thats why they leave that off.
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PJ Ritz
Dodge Dakota
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9/01/2003
18:05:32
| RE: 360 Magnum Crate Motor
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The reason you can't run air conditioning, is that that the thermostat sits in the center on the intakes that are on the crate motors and the thermostat must be offset to the passengers side to clear the air conditioning compressor.
Also, if you get the performance crate motors that are not for MPI, they have too much cam and the factory fuel injection system won't work, not even with a Mopar Performance Computer
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Jizzler
Dodge Dakota
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9/01/2003
20:01:27
| RE: 360 Magnum Crate Motor
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Little bit of moddin', could run an electric compressor. Have cold air and less strain on your engine :)
Like PG, I also heard that MPI was not recommened (or even work) with the 360 crate.
Sandman's suggestion is good. Rebuilding is a lot more fun that getting one that's already done ;)
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stu 71 duster
Dodge Dakota
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11/11/2003
14:37:24
| RE: 360 Magnum Crate Motor
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i was looking to purchase the 380hp crate for my 71 duster. but had some conserns for its use. i am using it as a daily driver & toy at the track once in a while. will this be to hard to keep running on the street because of the cam & such? i have a built 727 trans. so i know it can hold the power. i just don't want to buy it & have alot of problems adjusting it all the time. if it is ok what size of carb should i run?
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gen1dak
Dodge Dakota
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11/11/2003
19:14:43
| RE: 360 Magnum Crate Motor
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A lot of 380 buyers wind up swapping in a milder cam and going to a dual plane intake for street use. The 380 will put a Duster into the high 12's, and vacuum will be pretty low. It'll run well, but it's a little high spirited, but I guess it's all in what you want. At least run a 750 carb.
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Kowalski
Dodge Dakota
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11/12/2003
16:24:39
| RE: 360 Magnum Crate Motor
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Yes, 750 should be good. Decent streetability could depend on your rear gear/ torque converter stall choices. The A-body is a nice choice for the 380hp crate.
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Swamp Goat 007
Dodge Dakota
JOIN HERE
12/09/2003
23:40:35
| RE: 360 Magnum Crate Motor
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So the said name 360ci 380hp Magnum Crate Motor should be a nice swap for the std. 440ci that's in my 68 Chrysler 300 then right?
I'd like to set the original motor to the side and invest in a motor that don't have to worry about, i.e. for daily driving. What about the A/C though? I know that this has already been discussed but I'm not so sure I understand.
I've got a brand new A/C compressor for the 440 that is still in the box, is there anyway I can get it to fit on the 360ci 380hp Magnum Crate Motor?
Also, do I need to be concerned with matching the motor to the factory 3 speed auto, or is this likely to present a problem? If so what are my options in terms of a matching auto transmission?
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FazDak
GenII
12/10/2003
16:29:41
| RE: 360 Magnum Crate Motor
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Swamp, if your serious about a swap from a BB to a SB you should sell your Mopar now!!
Thats sacralige.
I dont think you will want the amout of work that will be involved in this conversion. The trans wont work, the K frame should be swapped for a SB unit or worse rewelded for SB engine mounts. HP #'s for the crate engine are pretty high up in the RPM. That will be a huge problem pulling your 2ton+ car around. BB's have a lot of low end torq and grunt, SB's on the other hand usually achieve there peak torq # higher up in the RPM's.
Do you have a letter car? if so I HIGHLY reccomend you dont do a BB to SB swap, its just not worth it. Find any decent 400, 383 or 440 in a junkyard, ebay or local papers. Do a basic rebuild and add an Edelbrock cam and intake kit. You will most likely save money and have a pretty decent engine to replace your original with.
I have an all original 340 Challenger, I did the exact same thing with the #'s matching block. Its tripple bagged covered with marine fogging oil.
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Kowalski
Dodge Dakota
JOIN HERE
12/10/2003
17:08:23
| RE: 360 Magnum Crate Motor
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Swamp Goat - FazDak's advice is on the money - that would be an ugly swap. That motor is designed for high reving duty in lighter vehicles.
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wuba
Dodge Dakota
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12/10/2003
18:24:32
| RE: 360 Magnum Crate Motor
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You don't have to change K frame. I think Yearone sells everything to do the swap from big to little or little to big.
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gen1dak
Dodge Dakota
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12/10/2003
19:14:25
| RE: 360 Magnum Crate Motor
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I agree with not going to a smallblock. Only a nice 408 stroker would even begin to approach that 440, and it's still short on cubes. The 380hp 360 has a torque peak around 4300 rpm. That 440 delivers smooth, silky power from down low. Ya gotta have a lotta low end grunt to get moving. Go yank any early 70's (71-73) 440 outta a station wagon. They all have 440 six-pack crank and rods, so they're Hemi-strong (structurally), but lighter, and a margin stronger than your original. If you're just dead-set on a smallblock, go with the 300hp motor, not the 380hp. A 408 stroker would be better. No replacement for displacement.
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Steven
Dodge Dakota
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1/22/2004
19:31:33
| RE: 360 Magnum Crate Motor
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I have a 360 Magnum crate in a '70 'Cuda. I am being told by my mechanic to yank the 750 Holley Double Pumper and put in a Holley 650HP. He said that the 650 will short change me on horsepower, but will beef up the torque quite a bit and will feel much faster for street use. Since I am going to be making a carb swap and my 'Cuda is an AAR clone, I was wondering if I could just yank the intake and install a 6 pack. Do any of you Dakota guys know if the standard 360 intake will mate up with the Magnum? I was told "no" by a restoration guru (that is sometimes wrong). I hope that this swap is not only possible but also a better performance move over the 650 option. Also, does anyone out there need a 750 Double Pumper with less than 500 miles on it??? I'll sell it for around half of the new price!
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