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  #1  
Old 02-13-2011, 11:14 AM
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Mr.Wagoneer Mr.Wagoneer is offline
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Post Best way to get 250-300 HP? (AMC 360)

Dose any one know of a good way to raise a early 80's AMC 360 up to at least 250-300 HP? I don't plan to tow but I love racing up free-way on ramps

I know aftermarket support is limited with AMC motors but other then bolt on's (Ignition/EFI) are there any internals that could be upgraded? I'm restoring my 83 Wagon and I would prefer to use the original AMC in it but build potential is limited, For example $3,100.00 buys me a good high performance fuel Injection kit for it but for that much buck I could just buy a complete Dodge Truck in good condition and have a 360 Magnum and it's A518 transmission with all the wiring!

Thoughts? Suggestions?
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Year: 1983
Make: AMC/Jeep
Model: Wagoneer
Trim: Limited
• AMC 360 5.9 Liter
• MotorCraft 2150 2 BBL Carb
• TF-727 3 Speed Automatic
• NP-229 Select-Trac Full/Part time transfer case
• Dana 44 Front Driver side drop AMC 20 Rear
• 109 in. Wheelbase
• 5975/6200 Lbs GVWR
• Manufactured in Toledo Ohio



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  #2  
Old 02-13-2011, 11:18 AM
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710 Burner 710 Burner is offline
 
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pffffttt! gassers. Horsepower is overrated. Bolt on torque.
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Actually, now that I think about it, that could be either awesome or really terrible.


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  #3  
Old 02-13-2011, 11:23 AM
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REDONE REDONE is offline
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I know you're looking for the short answer and not the long one involving volumetric efficiency and all that, so here it is. For more power, you need more RPMS. Recam to move the powerband up into the 3000-4000 range instead of the 2000-2500 range it has now, and regear the axles accordingly. You will own that freeway on ramp like a rich kid in his dads corvette!
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  #4  
Old 02-13-2011, 11:27 AM
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Stuka Stuka is offline
 
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300hp is very easy to get out of an AMC 360. You can go with a differ cam, intake, pistons, heads, exhaust, etc.

It all depends on what you want to spend.
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  #5  
Old 02-13-2011, 11:34 AM
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Mr.Wagoneer Mr.Wagoneer is offline
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Quote:
Originally Posted by REDONE
I know you're looking for the short answer and not the long one involving volumetric efficiency and all that, so here it is. For more power, you need more RPMS. Recam to move the powerband up into the 3000-4000 range instead of the 2000-2500 range it has now, and regear the axles accordingly. You will own that freeway on ramp like a rich kid in his dads corvette!

I would very much like to own an on-ramp like a rich kid in his dad's corvette!
__________________
Year: 1983
Make: AMC/Jeep
Model: Wagoneer
Trim: Limited
• AMC 360 5.9 Liter
• MotorCraft 2150 2 BBL Carb
• TF-727 3 Speed Automatic
• NP-229 Select-Trac Full/Part time transfer case
• Dana 44 Front Driver side drop AMC 20 Rear
• 109 in. Wheelbase
• 5975/6200 Lbs GVWR
• Manufactured in Toledo Ohio



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  #6  
Old 02-13-2011, 11:37 AM
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Mr.Wagoneer Mr.Wagoneer is offline
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Quote:
Originally Posted by Stuka
300hp is very easy to get out of an AMC 360. You can go with a differ cam, intake, pistons, heads, exhaust, etc.

It all depends on what you want to spend.

I know these parts can be upgraded but from where? where are these Performance heads and pistons the best I can find when looking for AMC performance Parts is a Rebuild kit
__________________
Year: 1983
Make: AMC/Jeep
Model: Wagoneer
Trim: Limited
• AMC 360 5.9 Liter
• MotorCraft 2150 2 BBL Carb
• TF-727 3 Speed Automatic
• NP-229 Select-Trac Full/Part time transfer case
• Dana 44 Front Driver side drop AMC 20 Rear
• 109 in. Wheelbase
• 5975/6200 Lbs GVWR
• Manufactured in Toledo Ohio



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  #7  
Old 02-13-2011, 12:05 PM
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FallonJeeper FallonJeeper is offline
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Start with:
1. cam from Comp Cams
2. Edelbrock Intake
3. Edelbrock 4bbl carb
4. Edelbrock Headers

The Comp Cams 260H will put you at 284 HP with this set-up.
The next cam up XE256H will put you at 292 HP.

Then, if you want more, you can get more serious with the heads and pistons.
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  #8  
Old 02-13-2011, 12:05 PM
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AllJackedUp AllJackedUp is offline
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Take a look at Bulltear, BJ's, Jeg's, Summit for parts. Master rebuild kits can be purchased from lots of companies but many folks recommend Norther Auto Parts.

Spend a little time searching this forum and Bulltear's forum and you will get many ideas for more power.
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  #9  
Old 02-13-2011, 12:21 PM
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Michael_King024 Michael_King024 is offline
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for $3100 you could almost afford to pay a good race shop to build your 360 up to those numbers...a wise man once told me in my late teens to that you need 2 things to make more HP..more air and more fuel. later in my early 20's when i took my SS to the legendary Bobby Warren here in clinton..the first thing i asked him was how much it would cost to add some serious HP to my lt1...his reply "well son it depends on how fast you wanna go!" long story short- 6 grand and 640 hp later i was but was none the wiser about engines and how they work..i'm not knowledgable enugh about the 360's to truly answer your question..but i think 300-350hp is a realistic goal that could be reached for $3100 if you do a lot of the work yourself..and dont throw away money on overpriced aftermarket parts like that F.I. kit...a properly tuned 4 bbl can turn the wheels just as fast as F.I...my best advice is to research, research, research....and then learn how to apply that knowledge by trial and error.
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  #10  
Old 02-13-2011, 12:54 PM
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Lindel Lindel is offline
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Speed costs money...how fast do you want to go?
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  #11  
Old 02-13-2011, 01:04 PM
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Mr.Wagoneer Mr.Wagoneer is offline
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Quote:
Originally Posted by Lindel
Speed costs money...how fast do you want to go?

I don't want to blow the doors off just in the range of of 250-300 HP I think would be fun, don't want to race the truck just give it some grunt!
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Year: 1983
Make: AMC/Jeep
Model: Wagoneer
Trim: Limited
• AMC 360 5.9 Liter
• MotorCraft 2150 2 BBL Carb
• TF-727 3 Speed Automatic
• NP-229 Select-Trac Full/Part time transfer case
• Dana 44 Front Driver side drop AMC 20 Rear
• 109 in. Wheelbase
• 5975/6200 Lbs GVWR
• Manufactured in Toledo Ohio



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  #12  
Old 02-13-2011, 01:11 PM
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AllJackedUp AllJackedUp is offline
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Car Craft article

Here is a good article found in Car Craft magazine. Look at combo #4: peak hp: 432 @ 6,000 rpm, peak torque: 470 @ 3,900 rpm. More of a hotrod approach but would own the on-ramps!

Try not to look at the build costs on pg.5
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  #13  
Old 02-13-2011, 01:23 PM
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Greeeeenberg Greeeeenberg is offline
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Quote:
Originally Posted by AllJackedUp
Here is a good article found in Car Craft magazine. Look at combo #4: peak hp: 432 @ 6,000 rpm, peak torque: 470 @ 3,900 rpm. More of a hotrod approach but would own the on-ramps!

Try not to look at the build costs on pg.5

Like how they found the motor out of " an '85 Jeep Grand Cherokee"

Nice article though.
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  #14  
Old 02-13-2011, 01:38 PM
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Depends on whether you want and expect longevity. The real-life cost is more than the initial build-up price. Consider now getting 6-7 mph average forever, and replacing transmissions, transfer case chains, rear-ends, u-joints, and motor mounts you'll keep tearing up...because no way will you reserve all the extra horsepower only for the occasional on-ramp.

Don't get me wrong: For special purposes such as off-road racing or reserved for towing heavy stuff several times a year, that would be wonderful. But I've never seen built-up performance schemes last as long as stock when used primarily for general, frequent road use.
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  #15  
Old 02-13-2011, 01:51 PM
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Lindel Lindel is offline
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Torque would be more of what you want then. Decent cam, 4 bbl intake and carb, open up the exhaust a bit and you'll be good to go.
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Quote:
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  #16  
Old 02-13-2011, 01:53 PM
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Mr.Wagoneer Mr.Wagoneer is offline
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Quote:
Originally Posted by Rich88
Depends on whether you want and expect longevity. The real-life cost is more than the initial build-up price. Consider now getting 6-7 mph average forever, and replacing transmissions, transfer case chains, rear-ends, u-joints, and motor mounts you'll keep tearing up...because no way will you reserve all the extra horsepower only for the occasional on-ramp.

Don't get me wrong: For special purposes such as off-road racing or reserved for towing heavy stuff several times a year, that would be wonderful. But I've never seen built-up performance schemes last as long as stock when used primarily for general, frequent road use.

Comes with the territory, But I'm not really concerned with durability, I'm pretty sure a AMC block can handle 300 HP and maintain longevity plus a TF727 can handle that power and torque like it was nothing (because that is nothing to a 727) not to mention my Four wheel drive doesn't work as it is so I'm gonna be ditching it anyways just dead weight now plus stronger motor mounts are easy to fabricate, I'm not thinking about building a 500 Hp monster MAX HP i would go is 360HP cause I think it would be cool to match HP to displacment XD
__________________
Year: 1983
Make: AMC/Jeep
Model: Wagoneer
Trim: Limited
• AMC 360 5.9 Liter
• MotorCraft 2150 2 BBL Carb
• TF-727 3 Speed Automatic
• NP-229 Select-Trac Full/Part time transfer case
• Dana 44 Front Driver side drop AMC 20 Rear
• 109 in. Wheelbase
• 5975/6200 Lbs GVWR
• Manufactured in Toledo Ohio



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  #17  
Old 02-14-2011, 08:53 AM
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It really doesn't take much to get those kind of numbers with a stock compression AMC 360. The heads flow well stock and they come from the factory with large valves. They are very detuned from the factory for mileage and emissions purposes.

Carb, intake, exhaust, cam, and gearing to get what you want. I believe my setup makes those numbers your looking for, and I do own on-ramps! My truck hauls the mail!!

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  #18  
Old 02-14-2011, 10:04 AM
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Quote:
Originally Posted by Josh D
It really doesn't take much to get those kind of numbers with a stock compression AMC 360. The heads flow well stock and they come from the factory with large valves. They are very detuned from the factory for mileage and emissions purposes.

Carb, intake, exhaust, cam, and gearing to get what you want. I believe my setup makes those numbers your looking for, and I do own on-ramps! My truck hauls the mail!!


Do tell Josh....you know how we love the gory details.... What components are you running? I am interested in the same - increasing torque to own the on-ramps.
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Old 02-14-2011, 10:40 AM
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Ghinmi Ghinmi is offline
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I built pretty much exactly what you're talking about. Took a bone stock 360 and added a Comp Cams 270H cam, lifters, and springs. Also put on an Edelbrock air-gap intake, holley carb, and Edelbrock headers. The ignition is upgraded with an MSD box. Aside from that the engine is all original. I put it on a chassis dyno and made 255.6 hp / 364.1 tq to the wheels. Easy as cake.

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  #20  
Old 02-14-2011, 10:56 AM
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marshotel marshotel is offline
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Quote:
Originally Posted by Ghinmi
I built pretty much exactly what you're talking about. Took a bone stock 360 and added a Comp Cams 270H cam, lifters, and springs. Also put on an Edelbrock air-gap intake, holley carb, and Edelbrock headers. The ignition is upgraded with an MSD box. Aside from that the engine is all original. I put it on a chassis dyno and made 255.6 hp / 364.1 tq to the wheels. Easy as cake.


Which holley? Which edelbrock intake? sorry - not up on the technical lingo - Im a wannabe mechanic that buys parts and has then installed! THat package sounds about right! The only parts on the list that I have installed so far is the edelbrock headers. Thanks
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