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any issues putting a 360 magnum in to a 74 e body? #2202001
11/24/16 08:22 PM
11/24/16 08:22 PM
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05dakota Offline OP
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do i have to use serp belt etc or can i use la block style alernator and water pump?

Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202004
11/24/16 08:32 PM
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05dakota Offline OP
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i was told there is no way to use a mechanical fuel pump and that the serp belt setup wont work with manual steering?


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202009
11/24/16 08:46 PM
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Rio Linda, CA
John_Kunkel Offline
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Just swap the Magnum timing cover for an LA, this takes care of the water pump and alternator problem. The mechanical fuel pump can be used with a kit to install the eccentric on the Magnum cam.

Some good info here:

http://www.magnumswap.com/using-la-parts-on-a-magnum/


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202021
11/24/16 09:07 PM
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what balancer is used with la style pullies?

Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202022
11/24/16 09:08 PM
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apparently nobody makes an la based crate engine?


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202043
11/24/16 09:50 PM
11/24/16 09:50 PM
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Missouri U.S.A.
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71yelladustr Offline
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You will have to use the early style 5.9 magnum balancer to use LA pullies. The later balancer have pulley/balancer 1 piece. I was unable to source a new old style pulley on my last build. All of the new ones I found were the 1 piece design. Had to get one from the salvage yard. Pre-99 engines should have the bolt on pulley.


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202153
11/25/16 12:41 AM
11/25/16 12:41 AM
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Originally Posted By 05dakota
apparently nobody makes an la based crate engine?
. http://www.mrlperformance.com/about.html

Dennis

Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202213
11/25/16 03:39 AM
11/25/16 03:39 AM
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Western Colorado High Desert
moparmarks Offline
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Classic has 340LA crates so they are out there.
Also try here.
http://www.hughesengines.com/Index/produ...GUgRW5naW5lcw==


72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202230
11/25/16 06:36 AM
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I used the professional products powerforce balancer pt no 80012
works perfect , bolted up all the la style front and oil pan and pick up with a small mod, been running 8 years no probs.

Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202464
11/25/16 05:37 PM
11/25/16 05:37 PM
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albany ny
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05dakota Offline OP
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what flex plate do i use?


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202470
11/25/16 05:49 PM
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will my 74 cuda hp exhaust manifolds work?


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2202478
11/25/16 06:07 PM
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as I recall, there is some unsupported area using la exhaust on mag heads.
the durango manifolds fit pretty well in a 65 B. I would expect them to clear in an 74 E.

Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2203029
11/26/16 10:09 PM
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05dakota Offline OP
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Cant find mopar preformance intake model: P5007381ab any where? any ideas?

cant find valve covers?


5549 post on old board
Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2203037
11/26/16 10:28 PM
11/26/16 10:28 PM
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Western Colorado High Desert
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Not finding that number in my book. Which intake is that?
MP black valve covers?

I don't know about putting LA E/manifolds on a Mag. head but I've seen Dakota manifolds on 340 heads in a 71 Cuda.


72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2203112
11/27/16 01:31 AM
11/27/16 01:31 AM
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denfireguy Offline
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To answer your several questions. I am running a 5.2L Magnum which is physically similar.
Fuel pump: You can get an eccentric that goes onto the nose of the cam shaft, I did not and went with electric
Timing cover: LA cover bolts right on and does not leak
Water pump: Same as above.
Heads: I opted for Engine Quest heads with the LA angle drill for intake. Hughes also has a similar head
Intake: I used a LD4B originally, now have Edelbrock Performance but only because the LD4's radiator hose and thermostat housing interfered with the A/C compressor (A Sanden conversion, the RV2 fit just fine)
Flex plate: Using the original 904 plate.
Exhaust manifold: Using the original LA. Since your are using a 360, I would look elsewhere for that solution.
Only issue was the alternator had to be spaced out a bit as it was too close to a mounting boss on the heads. It was heating the diodes in the back of the alternator making them fail prematurely.
Power steering strictly stock.
The only thing I could not use from the LA was the oil pan which I borrowed from a newer 360 to bolt on.
Craig

Last edited by denfireguy; 11/27/16 01:32 AM.

2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
Re: any issues putting a 360 magnum in to a 74 e body? [Re: moparmarks] #2203689
11/28/16 01:18 AM
11/28/16 01:18 AM
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05dakota Offline OP
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was mp version of a 340 intake modified to fit magnum heads.

was hoping to use a stock appearing valve cover and appars there is no such thing.


Originally Posted By moparmarks
Not finding that number in my book. Which intake is that?
MP black valve covers?

I don't know about putting LA E/manifolds on a Mag. head but I've seen Dakota manifolds on 340 heads in a 71 Cuda.


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2207928
12/05/16 12:53 AM
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I am using the LA valve covers. Not as many bolts but it does bolt on. I have had only one leak, passenger side at the middle bolt. Cinched it down a little tighter, leak gone.


2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
Re: any issues putting a 360 magnum in to a 74 e body? [Re: denfireguy] #2208144
12/05/16 03:35 PM
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I prefer to call it a 5.9 Mag, it is enough different to have its own name. For one thing, the external balance is different.

If you are using an automatic, then you use the stock 5.9 Mag flexplate and a neutral balance converter. Mags carry the imbalance on the flexplate, 360s have the imbalance on the converter. [5.2 Mags are internally balanced, as are all 318s.]
If you will use the converter from behind a an LA 360, the imbalance weights must be removed, and the 5.9 Mag flexplate used.

R.

Re: any issues putting a 360 magnum in to a 74 e body? [Re: dogdays] #2208464
12/06/16 12:04 AM
12/06/16 12:04 AM
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Quote:
If you are using an automatic, then you use the stock 5.9 Mag flexplate and a neutral balance converter. Mags carry the imbalance on the flexplate, 360s have the imbalance on the converter. [5.2 Mags are internally balanced, as are all 318s.]
If you will use the converter from behind a an LA 360, the imbalance weights must be removed, and the 5.9 Mag flexplate used.
R.
Hey Dog, for the record does that apply for both 904's and 727's. I would assume so but before I copy it I want to confirm.


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Re: any issues putting a 360 magnum in to a 74 e body? [Re: 05dakota] #2208495
12/06/16 01:08 AM
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yes it does. I have seen the 904 use the 5.9 flex plate with a hole wallowed out.

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