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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Any 360 can easily make 400 hp and way more BUT it and any other engine will need money to do so. To get around 400 hp will require a cam swap, cylinder head work, intake, exhaust, ignition system, pistons, etc. You can make as much power as you want but it's gonna cost you. The 318 Magnum engine started in '92 and the 360 started in '93.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Magnum's are a better engine but it costs money and time. Your stock 360 is still a pretty decent engine as 440 4spd Power Ram said. Roller rockers would certainly help and so would a good set of shortie headers from Summit and a Pertronix ignition system and a good exhaust system weather it be dual or a larger single pipe with a free flowing muffler.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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The only 440's worth swapping are the 60's and early 70's engines other than that a mild 360 will match the power of a late model 440 (which are the only ones readily available). I agree with Jerseybud in wanting 400 hp on 87 octane. It might be possible but it would be heavy on the lean side and extremely dangerous for the engine. The only way to achieve 400+ hp is to send the block to the machine shop which costs money. If you want that kind of power expect to buy pistons, have the block machined and either have some cylinder head work or buy new heads. Either way - if you do your engine or buy a Magnum (and then get work done to it) or get a 440 - it's going to cost thousands. Just be prepared for that. I also agree with Jerseybud about your heads being as good as Magnum heads but the added advantage the Magnum has is the reverse flow cooling.
If you want an idea of how much it will cost to hop up your engine, go to Summit Racing and enter pistons, cam, headers, rockers, etc for a 360 and add up the costs. It's not cheap. Just be prepared.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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What I would do is start one by one with the bolt on power stuff, like shortie headers (I'm a fan of manifolds for durability but they do rob power), free flow mufflers, bigger exhaust system, ignition wires, ignition system, carb or EFI, better intake manifold, 1.6 roller rockers, free breathing air filter and then get deeper later. Those items I listed will give you a noticeable power difference for sure. Start with that.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Lol, no. It's more than strong enough. Chrysler built stout engine blocks. High nickel content. 馃憤
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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If you get shortie headers just make sure you get the "center dump" model. The later Magnums had rear dump exhaust. I'm buying a set of these for my truck.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Keeping your 360 and hopping it up is the cheapest option in my opinion. The second cheapest option is to get a Magnum and then do it up. The big block will the most expensive option. A Magnum engine can easily perform as strong as a big block - so can an LA 360 to be honest and much lighter than a big block. Don't get me wrong, I love 440's but the 360 is a pretty stout engine with a little bit of work.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Rubbish. Besides have a 35 speed transmission and anti-lock brakes, old trucks with new springs and shocks and tires will haul as good as anything to be honest, just drive better. Since installing new Skyjacker springs and shocks and steering stabilizers and 10 ply tires and 1 ton axles and brakes, my trucks towing ability feels like it tripled to be honest. I forget how much my 18 ft boat and trailer weigh but I literally don't even feel it behind me at all. I used a buddy's new (at the time) Chevy truck to bring my boat home when I bought it 12 years ago and my truck now feels just like my buddy's Chevy did. Old trucks need new suspension, tires and brakes to make them better towers. In my honest opinion.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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These old rigs are just fine for hauling! I mean, it's what we USED TO USE just fine in the past. What's changed besides a million speed transmission and anti-lock brakes, that's it basically? These old teams would drive around the country for 10 months of the year and they seem to have got the job done. We got the Dodge Boys hauler, Ralph Earnhardt's truck and trailer, Finnigans hauler that he drives everywhere. New trucks are great but with some love an old truck will do just fine, again, in my opinion. Lol
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Here's a new truck hauling a race car. Looks the same as the old trucks. Lol
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Air bags are a great addition. What do you mean 1/2 springs. Do you mean like an overload spring? I would just get new leaf springs and shocks and your air bags. I would also get 10 ply tires.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Couldn't agree more CCB, but compared to modern towing it is light years behind for the driver. Also everyone runs 75 to 80 on the highway and wants 20 mpgs. Those old rigs couldn't do that. Not to mention the creature comforts and tech people nowadays want. Soft is a good word for it. Not saying the OP is or anyone else for that matter, but the newer gen trucks make it easier on you hauling with your hands relaxed at the base of the wheel instead of white knuckling it at the top everytime you hit a mountain side up or down. Finnigan never leaves anything stock either lol.

Neil
I hear ya brother. The new stuff is certainly very nice to have but it's very expensive and doesn't last as long. Sometimes we gotta make due with what we have or can afford. For me, I just love the old school looks but like some of the modern technology for sure. In fact, I was all about technology throughout the 2000's but then I stared realizing how unreliable it is compared to the old stuff and how much money it costs just to maintain the new stuff (sensors, plugs, wires, etc). Before my accident I was I need of a shop truck because my business was really taking off and I was going to buy a wrecked Ram from the insurance company and fix it and drive it but then lying in bed one night I started thinking about my dad's 1979 F-250 Super Cab 2wd with a 460 and when he bought it new and how I never ever recall seeing it come home on a tow truck once or it ever seeing it sitting at the dealership for warranty work and he drove that truck to and from work daily for 20 years. He used it on the farm, hauled wood, dirt, we drove it to Mexico once, California twice, Oregon and Washington a bunch of times, we drove it to Alberta twice, and all over British Columbia a bunch of times. That's when I pulled the plug on my idea of getting a new Ram and found and bought my truck instead and now my truck has only let me down once in the 12 years of owning it and it's a real pleasure to drive with no white knuckles! Lol.
It's funny, in this last snow dump we got for a few days, my truck did far better than all of the new trucks on the road. They were slip sliding all over the place and my rig just cruised right on by. Lol 馃挭
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Usually a small screw holds the turn signal lever on. Epoxy will not work. It's not strong enough. It must be replaced unfortunately.
 
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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Is the ear pot metal?
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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It needs to be replaced. JB Weld will eventually break.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Twist counterclockwise and pull
 
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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Yes, I'm picking up what yer putting down but late production 440's (which is about the only thing readily available these day's) out of an RV only made 200 hp and 320 lb ft torque. Well that's right were a 360 sits also and with a few goodies on the 360 will make it perform even better. My comment was only a comparison to a bone stock motor home 440 but yes, an early production 440 is a lot more stout but good luck finding one and If you do, bring your mortgage broker cause it will be big bucks.
 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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Here in this article it shows that the 360 in 1972 made 285 ft lbs of torque. It even mentions the 1968 318 that makes 340 ft lbs of torque. Let's not forget the torque that the mighty 340 made!

 

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'79 Macho 360 Magnum, Comp 480 cam, Hughes springs, 650 Thunder AVS, Pertronix Flamethrower ignition
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The '72 340 was only 240hp and 290 ft lbs, the '71 360 beat it with 255hp and 360 ft lbs and with a two barrel carburetor. Remember that Chrysler didn't want the 360 to embarrass the 340 so it didn't get a 4bbl or high performance cam until '74 after the 340 was dropped.
Yep, the '68 - '70 340 made an advertised 275 hp and 340 ft lbs torque but was actually around 320 hp and 368 ft lbs of torque. That's more than a smogger 440.
 
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