1999 5.9l Magnum in a 67 A100

At this point I had just set the motor in the hole. My truck was originally a V8, so this was fairly straightforward. This engine actually had the dog ears on it for the older mounts, so the only issue was finding a right side tower from a 360 and two new biscuits. I will need to clearance the drivers side of the doghouse to make room for the P/S pump. The seat should still fit just fine when I am done. I will post pictures as that progresses.

I'll be watching this closely. I'm putting the same into mine. Are you keeping the FI? I put an Edelbrock AirGap manifold on the one I have to run a carb. After messing with all the computers in another rig during an engine swap, I figured I'd save myself a few headaches.

travis4prez wrote:I'll be watching this closely. I'm putting the same into mine. Are you keeping the FI? I put an Edelbrock AirGap manifold on the one I have to run a carb. After messing with all the computers in another rig during an engine swap, I figured I'd save myself a few headaches.

I am going to try to keep the injection because the only manifolds that I have found for a carb do not have the proper bosses for the A/C compressor, plus my RE transmission requires the ECM. If I could find a carbureted manifold that would work with my accessories with no changes, I would swap to a carb and a RH or a 518 transmission. My first project when I get home will be the power brakes and when I get that done I plan on tackling the wiring harness to make it work in my hot rod. I would love to see some pictures of yours.

Edelbrock 7577 has the bosses for the A/C.

During my fight with computerized vehicles, I found that the ECU also talk to the body computer, the transmission computer, and the instrument cluster. If any of these don't talk back to each other or the ECU, one of 2 things happen:
1. Nothing. No start but everything (spark & gas as best I could tell) works
2. The engine runs in "Limp Home" mode. It will get you there but you really won't have much fun.

I also found you can flash the ECU ($$$) or buy a special ECU ($$$$) to get rid of this problem.

I really hope yours works out. I have the FI system and an ECU ready to go back on mine if you get yours up & running. Good luck!!

Are you going to use the P/S pump?
I removed it from the magnum in my '40 coupe.
Ended up finding a shorter serp belt that was one rib narrower to fit.
If you can find a pre-OBDII computer (95 back), it should make the swap easier, provided you planned on rerouting the wiring anyway, but the trans will require you to research carefully!

I hope you've figured out and are willing to share how that long trans is going to fit and still provide some driveshaft for suspension movement!

travis4prez wrote:Edelbrock 7577 has the bosses for the A/C.

I absolutely will look at this manifold. Thank you very much. My first priority will be an attempt to keep it FI. I have the complete driveline and harness and computer out of a Durango RT. If the harness gives me fits, then the next move is the carb and a 518. I will keep you posted.

RodStRace wrote:Are you going to use the P/S pump?
I removed it from the magnum in my '40 coupe.
Ended up finding a shorter serp belt that was one rib narrower to fit.
If you can find a pre-OBDII computer (95 back), it should make the swap easier, provided you planned on rerouting the wiring anyway, but the trans will require you to research carefully!

I hope you've figured out and are willing to share how that long trans is going to fit and still provide some driveshaft for suspension movement!

I will be using the P/S pump to drive the steering gear. I have already built a driveshaft using a CV joint that is almost comical due to the short length but should have more than enough slip room in the splines to function properly. Once I have put a few miles on it, I will post a few pictures if it works.

Im doing this exact swap this weekend. 318 to a 1997 5.9l magnum. Sorry if this is dumb, But I cant get the front of my dog house off. Where the bolts at? I took out the 3 front screws and took off the emergency brake lever already.

VanninBlaino wrote:Im doing this exact swap this weekend. 318 to a 1997 5.9l magnum. Sorry if this is dumb, But I cant get the front of my dog house off. Where the bolts at? I took out the 3 front screws and took off the emergency brake lever already.

Not dumb at all. After unbolting the lid, I actually removed my side panels first. There are bolts on the floor and also to the front and back panels. Once the side panels are out of the way, you can clearly see what needs to be done to remove the radiator and front section. Look for bolts holding the front to each side and keep in mind that each section could be glued down or stuck down by the factory sealer. Keep us posted on how your swap goes. I have finally found a company that has a wiring harness for a Magnum swap, but they want over $800.00 for their harness. I will probably have to convert mine myself.

Remove the belly pan to access the underside.
The e brake needs to be removed, along with the cable.
The radiator can be removed or stay in the front, but hoses and lines need to be disconnected.
The wiring on mine went thru a hole in the bottom leg.
If you have a manual trans, check the shift arms too.
If auto, look at the shift cable.
Check the throttle cable/linkage also.
Lots of stuff in that area!

Thanks guys. Droped the radiator and clearly saw what was hanging behind in the front of the doghouse. I didnt read this post throuroughly and about a balf hour before putting the engine in realized one motor mount work work. What did you do hoffy09 for the mount? One original 318 mount and a new mount? Or cut the other mount to fit?

hoffy09 wrote:

VanninBlaino wrote:Im doing this exact swap this weekend. 318 to a 1997 5.9l magnum. Sorry if this is dumb, But I cant get the front of my dog house off. Where the bolts at? I took out the 3 front screws and took off the emergency brake lever already.

Not dumb at all. After unbolting the lid, I actually removed my side panels first. There are bolts on the floor and also to the front and back panels. Once the side panels are out of the way, you can clearly see what needs to be done to remove the radiator and front section. Look for bolts holding the front to each side and keep in mind that each section could be glued down or stuck down by the factory sealer. Keep us posted on how your swap goes. I have finally found a company that has a wiring harness for a Magnum swap, but they want over $800.00 for their harness. I will probably have to convert mine myself.

the harness is pricey but if it includes a tuneable computer it not a bad price. otherwise you are limited to your stock ECM and for upgrades from suppliers like powertech and bullydog. the factory piece would only be accessible thru chryslers witech system and not much tuneability in that.or the other way is to convert that paticular engine back to carb and go from there. just waiting to see who will install a new style 5.7 or 6.1 hemi in one of these vehicles. better yet a 6.4 from a challenger...

The magnums all use the 360 style oil pan and the left side bracket.
You need to find a 360 bracket (they were never stock on As) or an aftermarket one to bolt up.
You can cut and weld the stock 318 mount to work also.

I would suggest getting your fan shroud all designed and set up before re-installing the radiator. That magnum develops more HP and heat and prefers to operate at a warmer temp, so that needs to be part of the design/swap.

We cut a rebuilt my other mount to fit. Thanks

Can you provide any more info on the mounts? I think in going to buy the 360 mounts. Ours is in my van, but so close to the drivers side the header doesnt fit. It was skewed and crooked, but its fairly level now side to side.

VanninBlaino wrote:Can you provide any more info on the mounts? I think in going to buy the 360 mounts. Ours is in my van, but so close to the drivers side the header doesnt fit. It was skewed and crooked, but its fairly level now side to side.

I just used a pair of towers (mounts) that were on a 360 I had laying around that was removed from a 1/2 ton pickup. I believe that any truck that has a LA 360 in it will have the towers that you need. My truck did not have an engine in it when I purchased it and I have never had the original 318 towers.