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Re: Another Magnum question - serpentine belt swap?
[Re: Snailpower]
#14513
02/24/05 11:40 PM
02/24/05 11:40 PM
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Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
Clair_Davis
master
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master
Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
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Isn't the water pump reverse-rotation? Or, are you saying that you got the timing cover/water pump assembly, too? Unless there's some issue about how it bolts up to the block, it ought to just fall in place. I guess you could get an LA timing cover gasket and drop it on to see how it fits. Lemme know how this goes, I've been eyeing the same thing for a while. I don't need no billet crap, stock low-tech die-cast parts are fine with me. Also, FWIW, the late-model full-size vans have REALLY tidy A/C compressors. That's kind of where I'm heading with my plans.
Clair
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Re: Another Magnum question - serpentine belt swap?
[Re: Clair_Davis]
#14514
02/25/05 12:01 AM
02/25/05 12:01 AM
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Joined: Sep 2004
Posts: 1,913
Brunswick, Jawgia
Snailpower
OP
Infinitely Fast Snail
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OP
Infinitely Fast Snail
Joined: Sep 2004
Posts: 1,913
Brunswick, Jawgia
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You said it better than I could have. Stock look is fine! I have the entire setup, to include the timing cover. I believe it should bolt up fine, but just looking for anyone who has tried it before. The addition of the little Sanden A/C compressor is a bonus.
Yes, the water pump is reverse rotation, but with the whole setup, it will work like it's supposed to..
Last edited by snailpower; 02/25/05 12:02 AM.
70 Coronet- turbocharged 360/518/3.73 SG
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Re: Another Magnum question - serpentine belt swap?
[Re: Snailpower]
#14515
02/25/05 12:10 AM
02/25/05 12:10 AM
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Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
BBR
master
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master
Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
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Your cam snout *may* be too long to clear the Magnum timing cover as they run a cam with a short snout and no fuel pump eccentric.
Drag Week 2011 - 77th place - DD
Drag Week 2012 - 2nd place SRBB N/A
Drag Week 2014 - Kapooya
RMRW 2018
RMRW 2020
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Re: Another Magnum question - serpentine belt swap?
[Re: moparmaniac]
#14518
02/25/05 09:14 AM
02/25/05 09:14 AM
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Joined: Sep 2004
Posts: 1,913
Brunswick, Jawgia
Snailpower
OP
Infinitely Fast Snail
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OP
Infinitely Fast Snail
Joined: Sep 2004
Posts: 1,913
Brunswick, Jawgia
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I do have an electric fuel pump already, so I won't miss the old timing cover. Is there anyway to verify the length difference between the snout of the Magnum cam and the LA style cam? I REALLY do not want to tear the front of the motor down just for experimental reasons. I do not have another LA motor laying around to play with. I think this would be a great addition to the older LA motors if it works...
70 Coronet- turbocharged 360/518/3.73 SG
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Re: Another Magnum question - serpentine belt swap?
[Re: Clair_Davis]
#14520
02/25/05 11:10 AM
02/25/05 11:10 AM
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Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
BBR
master
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master
Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
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Just need to measure the inside depth of the cover. Snailpower, measure the Mag one and I'm sure somebody can come up with the same measurement on a stock one. I have an LA one at home....somewhere.... 
Drag Week 2011 - 77th place - DD
Drag Week 2012 - 2nd place SRBB N/A
Drag Week 2014 - Kapooya
RMRW 2018
RMRW 2020
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Re: Another Magnum question - serpentine belt swap
[Re: Clair_Davis]
#14521
02/25/05 12:53 PM
02/25/05 12:53 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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Quote:
Hmmm... I forgot about the cam snout issue. I'm going to be pulling the front cover on my 340 soon to advance the cam a little bit. Front covers on all LA engines are the same, correct? No funky stuff just for the 360, right? I can take a measurement of the cam or the cover, whatever you need. I've also got a solid 318 sitting on a dolly in the garage if you need the info SOON... 
Clair
from the comp cams catalog on their website:
"engine failure" probably is in reference to running a magnum cam in an LA engine, and not getting any oil to the heads. whether or not the long snout will fit in the t-chain cover, I don't know. you'll probably have to cut a fuel pump eccentric to make it into a flat washer to clear the t-chain cover at the very least...
Last edited by patrick; 02/25/05 12:58 PM.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Another Magnum question - serpentine belt swap?
[Re: Snailpower]
#14522
02/25/05 02:01 PM
02/25/05 02:01 PM
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Joined: Jan 2003
Posts: 350
central IL
myduster360
enthusiast
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enthusiast
Joined: Jan 2003
Posts: 350
central IL
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ive did this last year on my duster. Its basically a no brainer but there are some issues. Oh, and I have magnum heads too. - cam length is no problem.
- A/C compressor sits on top of the t-stat. Newer mag M1 manifolds move it out of the way. i plan on using a Sadden compressor but haven't got that far. For now, i just run a non-A/C belt. Truck guys ran my M1 MPI manifold for a number of years, they just notched the compressor, but the truck t-stat housing is pretty tall. using the mag truck housing might be manditory to keep the hose from wearing on the compressor. Three bolts hoding the compressor will do
- Power steering pump winds up touching the battery tray if you got a braket off a Ram/Dakota/Durango. I notched my battery tray and used a thinner group 45(i think?) battery. The best idea is to use a power steering bracket off a B-van. The van bracket moves the pump in and down. I have the bracket but have yet to install it.(its cold here)
- I used a molded 90 degree 5/8" heater hose to cleanup the hose routing
- The LA dipstick wants to end under the alternator. I use a chrome sb "ford" parts store replacment. i only had to slightly bend the tube and then cut the stick to fit. The tube even had a bracket that lined up perfectly with on of the pump housing bolts.
i think thats about it Dave
1972 Swinger 3.6L Pentastar
Diablo CMR tuner
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Re: Another Magnum question - serpentine belt swap?
[Re: myduster360]
#14523
02/25/05 03:17 PM
02/25/05 03:17 PM
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Joined: Sep 2004
Posts: 1,913
Brunswick, Jawgia
Snailpower
OP
Infinitely Fast Snail
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OP
Infinitely Fast Snail
Joined: Sep 2004
Posts: 1,913
Brunswick, Jawgia
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Thats some good info myduster...you do bring up an issue. I put my battery in the trunk and the turbo now takes up that space in the engine bay. Hope the PS pump on the Magnum setup doesn't come too close since I cant notch the turbo. I have 98 Durango 5.9, so I will make some measurements before jumping in. Thanks for the help! Anyone else?
70 Coronet- turbocharged 360/518/3.73 SG
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Re: Another Magnum question - serpentine belt swap?
[Re: Dos Snails]
#14525
02/27/05 06:23 PM
02/27/05 06:23 PM
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Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
Clair_Davis
master
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master
Joined: Feb 2003
Posts: 4,204
Fort Worth, TX
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Quote:
The bolt holes on the ends or the heads are milled even and the LA heads are not,So you just put washers or spacers to make them level.
Spacers are easy enough... Milling the heads wouldn't be much fun. I think I need to hit the 'yard again and look at a couple different applications. The 3.9 V6 ought to be the same, right?
Clair
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Re: Another Magnum question - serpentine belt swap?
[Re: Snailpower]
#14527
02/28/05 11:55 AM
02/28/05 11:55 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Does anyone have any pictures?
I have runt into a problem with my LA to 56 Dodge install. The crank pulley is too big and hits the crossmember and the ps pump sits to far out and down from the block also hitting the crossmember.
A few pics may be anble to help me determine if this conversion is something that will work for me.
Scott
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more LA to magnum questions
#14528
02/28/05 02:31 PM
02/28/05 02:31 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Great post. I have a '99 dodge dakota 5speed with a magnum 318 (156K on it) and I have a '74 318 (automatic) out of a dart in the shop i would like to rebuild an put into the dakota. I'd like to build a stroker LA shortblock and use all the magnum factory heads, intake, accesories, injection, and computer. Is this possible? what cam would I want to use to not confuse the computer? Is there something else I am missing or forgetting? The coverter currently has no insides and it doesn't seem to affect the computer so far.
thanks,
Wagonman
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Re: more LA to magnum questions
#14529
02/28/05 05:57 PM
02/28/05 05:57 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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349" 318 based stroker (360 crank) or a 4"?
hmm...it'll be tough to say "what cam" to maintain the stock computer....I'd find someone who can flash it, or use a piggyback, or a different EFI controller. for a good cam that makes power and would work good in your relatively heavy truck, look to a comp XE262 or XE265HL
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: more LA to magnum questions
[Re: patrick]
#14530
03/06/05 12:59 AM
03/06/05 12:59 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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I went and took a look at a friends 1993 Dakota V6. Are they the same as the V8?
If so it won't work on my LA. The PS bracket mounts to the head with 3 bolts adn so does the tensioner. I have Edelbrock heads and they do not have the same mounting holes cast into the head. So unless the V8 is different or unless earlier years are different it will be a no go for me.
Scott
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