Just wondering if anyone can link me to the kit that supposedly out there, or tell me how to put magnum heads on an LA motor. I want to use my stock block for my twin turbo project but I want to use a fuel injection setup, so I figured the stock setup would be more cost effective.
impuresoul2k3
10-16-2008, 06:14 PM
Up!
1972-D100
10-17-2008, 10:35 AM
Sorry can't help you, never tried to put the Magnum heads on a LA block, I haven't heard of a get to do that either.
But here is a thread from a Dodge Dakota Forum site from 2002, pretty good info on it...
http://www.dodgedakotas.com/boards/v8/1269.html
1972-D100
10-17-2008, 11:30 AM
Here is another good info article, covers more then what you are asking, but it does talk about it...
It's pretty straight forward I think, you have to use hollow pushrods IIRC.
impuresoul2k3
10-20-2008, 08:49 PM
deleted
impuresoul2k3
10-20-2008, 08:49 PM
thanks for the links 1972-d100
MIRADAMEGACAB
10-20-2008, 09:07 PM
The pushrods have to be hollow for the oil to flow. The intake has to be a Magnum as the bolts are staight up and down. And I think you might have to close off the oil feed hole in the block? Turbos, blowers, nitrous, you might have to O-Ring the heads and cut receiver grooves in the block and run a copper head gasket with all that cylinder pressure.
MIRADAMEGACAB
10-20-2008, 09:26 PM
AMC tappets have the oil hole in the lifters.American Motors 360 - 401 V 8. Or Mopar tappets p4529220ab and pushrods with a lenght of 7.625 Mopar p5007477. Thats for flat tappets and a block, head combo that hasnt ben decked or milled. A 5/16 X 18 tap will block off that oil feed hole in the block. Plug it with a grub screw.
MIRADAMEGACAB
10-20-2008, 09:34 PM
Factory Magnum heads have a tendancy to crack from valve seat to valve seat so remove the valves to inspect if your buying used. And the compression ratio will go up using these heads as they have a 60cc chamber. The Mopar Performance aluminun magnum heads have 53cc chambers. High compression is a no no with turbos or blowers.
B-300
10-21-2008, 11:53 PM
Why not use LA heads as they are less likely to crack and have larger combustion chambers which would give you a lower compression ratio.
Edelebrock makes a multi-point fuel injection manifold and fuel rails for the LA engine. It's the same Victor manifold the use with there own FI system.
Speed Dragon
10-22-2008, 07:32 AM
Why not use LA heads as they are less likely to crack and have larger combustion chambers which would give you a lower compression ratio.
Edelbrock makes a multi-point fuel injection manifold and fuel rails for the LA engine. It's the same Victor manifold the use with there own FI system.
I was thinking the same thing actually. Some aftermarket 4-bbl mani's have injector bosses cast in already (for N2O or whatever), so it's possible to get one of those, have the bosses drilled by a machine shop, then make your own fuel rail and brackets, and use an aftermarket 4bbl TB (or a stocker w/ an adapter) and a standalone. I would run a set of 302 or 308 heads.
1972-D100
10-22-2008, 09:04 AM
Why not use LA heads as they are less likely to crack and have larger combustion chambers which would give you a lower compression ratio.
Edelebrock makes a multi-point fuel injection manifold and fuel rails for the LA engine. It's the same Victor manifold the use with there own FI system.
Depending on what he wants the build for, application wise, he may want to go with the Magnum heads because of the higher compression ratio... Just depends on what he is looking for. You can get a 450hp motor without doing to many mods to it this way, just about everything you would need is bolt on and play...
1972-D100
10-22-2008, 05:18 PM
I found the kit you were looking for... Well it's not a kit, but all the parts are list there with the prices... http://www.mopartsracing.com/parts/ram.html
MIRADAMEGACAB
10-22-2008, 08:25 PM
Well, if hes wanting to run TWIN TURBOs, he doesnt need these heads as the turbo will force air in. Go with Edelbrock heads from the LA family.
1972-D100
10-23-2008, 08:41 AM
Well, if hes wanting to run TWIN TURBOs, he doesnt need these heads as the turbo will force air in. Go with Edelbrock heads from the LA family.
True, Miradamegacab is correct, turbo on a high compression motor is a no no...He said he wanted to use twins on it, then he really needs to stay with the LA heads to use the turbos as the LA heads will keep the compression lower.
MIRADAMEGACAB
10-23-2008, 05:36 PM
X2 and Edelbrock heads are fine out of the box and ALLUMINUM heads are excellent for removing heat. Just like running one point higher in comp over cast iron.
volaredon
10-27-2008, 07:40 PM
I am new to the site but by no means to Dodge trucks; looking to do this very thing to my '83 318, as I have 4 sets of Magnum heads lain around; DON'T buy the lifters from MP; over $10 each; the standard flat tappet ones from Perfect circle, etc, (PN HT 2011 IIRC) will do fine fr <$3 ea the last time I checked; and Ive seen catalogs that already show the same lifters for Mopars AND AMCs. I never heard about having to block anything off; Ive posted this very question on other Mopar sites that I frequent.
All I am lacking is a manifold to fit the Magnum heads and a carb; I don't know if I could just redrill a Perfomer or even a stock Mopar LA intake?
B-300
10-28-2008, 12:49 AM
Edlebrock makes a performer RPM to fit the magnum engine.
I have seen a version of this manifold on ebay. It's called the Crosswind and is drilled for magnum and LA engines.
impuresoul2k3
11-04-2008, 09:09 PM
Don't worry guys, I am pretty well versed in turbo apps. I have an 87 Shelby Z with:
-60 Trim T3/T4
-3" Swing valve/side exit exhaust, no cat, Dynomax muffler
-Ported/Grooved Head
-3 Bar Map/Ecu
-Walbro 255
-52lb Injectors
-AFPR
-FMIC
-PT Cruiser Lifters(quiets the noisy valve train and help with high rpm running)
-Two Piece Intake
-Ported exhaust mani
Just trying to weigh my options with what to run with the truck for both cost and tunability. Leaning towards propane or FI using Megasquirt.
Does anyone know how much it is to get injector bosses drilled? If that's a cheap option I would gladly use LA heads. I just didn't want to have to buy a $3000 kit just so I could run FI.
Speed Dragon
11-05-2008, 12:06 AM
Does anyone know how much it is to get injector bosses drilled? If that's a cheap option I would gladly use LA heads. I just didn't want to have to buy a $3000 kit just so I could run FI.
A lot less than 3k :) I would say couple hundred would more than cover it, certain aftermarket single plane intakes have the bosses in them already for injectors.
impuresoul2k3
11-05-2008, 08:24 AM
hmmm, now I need to decide EFI or propane....
I will probably go EFI for the tunability
Do you have any names or links of intakes that have the bosses already?
Speed Dragon
11-05-2008, 02:09 PM
hmmm, now I need to decide EFI or propane....
I will probably go EFI for the tunability
Do you have any names or links of intakes that have the bosses already?
Or E85 ;) I'll see if I can find some links for you.
You want tunability? Yet you want EFI? These are 2 mutually exclusive concepts; Tunability; how much more tunable can you get than customizing advance on a distributor, jet swaps and such (metering rods too depending on model of carb) how much more tuneable can you get? I just 86'd my EFI 97 Ram for an 83 D 250 because I can't swing $350 a crack for computer flashes and such.
impuresoul2k3
11-05-2008, 02:14 PM
I would classify E85 as EFI, where as propane is a carbureted setup
Checkout Megasquirt, you can adjust injector pulsewidth, when they fire, ignition curves, boost retard, it gets feedback from an O2 sensor, it can correct for intake and engine temps, Map sensor values, TPS sensor, etc. Its easy to change with a laptop and the controller is only $300.
Stand alones are a lot better than ODB-1/OBD-2 for tuning. Also as your Ram was OBD-2, aren't there tuning options out there that don't require burning a chip?
With your carb can you adjust the fuel amount at specific rpm? How about if you need 1 degree less of timing at 3500rpm at WOT instead of throughout the whole curve, can you adjust that? How long would it take you to setup everything if you wanted to switch from say 89 octane to 110 at the track?
Speed Dragon
11-05-2008, 09:07 PM
Yeah programmable efi > carbs all day long. Don't get me wrong, I like my carbs, they are simple and work well for stock to mild builds. But when you can build a 500-600hp engine that is easily drivable everyday even in winter, can get 20-25+ mpg, and can increase output by 100+hp at the stroke of a key and a fuel change... :)
impuresoul2k3
11-06-2008, 08:13 AM
Not to mention I have a friend who is familiar with tuning and tuning concepts, so I'll let him tune it:) Hopefully going to start in the middle of January, that'll give me a month of working full time over winter break for some cash. I found forged H-Beam rods for $350 so that helps cut down on costs. Now if I could find some decently priced pistons...
1972-D100
11-06-2008, 08:28 AM
What style pistons are you wanting to use?
volaredon
11-06-2008, 04:24 PM
thats funny; my still stock 83 D 250 with a 318 and a CARBURETOR and no OD in the trans is no worse on fuel than my 97 Ram with a 318 Mag was and is way better than my 88 D 100 with 318 TBI was.... that was my worst gas hog I ever had.
impuresoul2k3
11-06-2008, 07:24 PM
What style pistons are you wanting to use?
Forged, .020-.040 over
impuresoul2k3
11-06-2008, 07:24 PM
I can pull 22mpg on the highway in my jeep, what can yours do?
Besides speed said programmable EFI, which Megasquirt is.
Speed Dragon
11-07-2008, 03:11 PM
Programmable EFI > everything else, including factory EFI.
impuresoul2k3
11-09-2008, 09:34 PM
Or E85 ;) I'll see if I can find some links for you.
yeah I'm still playing with ideas, I'd like to find a LA intake with injector bosses
1972-D100
11-10-2008, 08:56 AM
Here you go, this Edelbrock one is for the LA heads if you choose to stay with them....
CHRYSLER 340-360 V8
SUPER VICTOR EFI (3500-8000 rpm)
Super Victor Chrysler EFI is based on the Super Victor Chrysler manifold #2815. For high-rpm 340-360 c.i.d. Chrysler V8s with standard port location heads, it delivers maximum power from 5000 to 8000 rpm with peak torque at 5500-6000 rpm and peak power at 7000 rpm. Precisely positioned and machined injector bosses deliver excellent fuel spray patterns and maximum power. Universal 4-Barrel Throttle Bodies, fuel injectors, fuel pumps and regulators are also available to complete your EFI system.
impuresoul2k3
11-10-2008, 09:39 AM
that'll fit on a 318 right?
tactransman
11-10-2008, 09:52 AM
Here is some more info for anyone else wanting to do it. :D
