I am doing a stock 360 LA to magnum engine swap and I was hoping to get some advice on which carb? I was looking into both companies off-road/truck series 650 ish carbs. Any ideas or suggestions? Any and all opinions are welcome.

 

REALLY?

 

318 LA in the '92 D250 has a Holley 650 cfm 4011. Works real well but is old and has a loose primary throttle shaft so I went and bought a 625 cfm Street Demon, I like the look of the stacked primary booster. It is not installed yet but I'm hearing very good things from the Mopar community.

Someone always says stick with what Chrysler engineers used, I say B.S., a good carb is a good carb. I've used all sorts, one of my favourites was always the Rochester Q-Jet, even more than the TQ. I've mostly used old stuff I rebuilt and been partial to Holleys because of the adjustability. This Demon is the first new carb I've bought in 30 yrs so soon it is going on and we will see.

 

if you dont like the way chrysler does things. why dont you just go to an other brand.

 

Yeah, but you can only take it so far. A lot of the Mopars owned by members here came with bias ply tires for example, but most of us run radials now. It is possible to find a better carb than the cars came with, mostly because Chrysler's financial department can't tell you not to.

 

I knew this would happen. Chrysler did put Rochester Q-jets and Holley carbs on plenty of their engines, but I prefer to live in 2013 and use what works for me.

Back to the original question, I did use a Carter 625 cfm Competition Series on the truck (kinnda an Edelbrock) was a little fat on the primaries but when the secondaries opened it went like hell and sounded great. Didn't spend any time tuning it before the Holley vacum secondary 4011 went on.

 

Ive had both Eddy & holley and if tuned right they both work well... I like the way the Eddy 's secondaries come on quicker over the vacuum secondary of the holley but that can also be changed. The edelbrock is pretty much bolt and go very little fine tuning...Bill Now its time for everybody to chime in... Do yourself a favor, Do the research and go with what you want.

 

I use all the above!!!!! Ya NO Chit....
Back in the day. I ran AVS AFB WCFB T.Q.... ok Now I'm dating myself.....I work on Brand -X also.
My 331 was Bad Azz

 

I thank you guys for all the input. Given the nature of the project I believe the Edelbrock 1826 off-road series is the way to go. The truck will sit majority of the time and since I am looking to save a few bucks the eddy is a bit cheaper.

 

Honestly Dave....EFI works the Best for Off Roading I have found...
Holley would be next....
My last choice would be Carter...
But thats just me...

 

I have the entire fuel injection set up from the magnum including the wiring harness (because I still have the body of the truck). I am just leery of wiring in all I need to make the fuel injection work. If I go carb I can leave the trucks wiring alone all I will need to do is get an external low pressure fuel pump.

 

ok. Maybe i'm adding to much confusion for the subject......
If your truck is going to be an agressive climber crawler...Then EFI works better because there is no fuel "slosh" like a carb has. Generally speaking.
But as for the carb, I would use the Holley 650 Double Pumper.
http://www.jcwhitney.com/ultra-doubl.../p3055851.jcwx
Hope that helps a little?

 

I think this is what I want to go with... Specifically designed for off road use to reduce slosh, and allow fuel to flow even at severe off camber angles.
http://www.summitracing.com/parts/edl-1826

 

Keep us posted on how it works out !!!

 

racer these kids DONT EVEN know what a WCFB is. LOL

 

Hahahaha....Did I go To far?

 

If you are going to be doing mostly mud and trail rides, then the Edelbrock off road carb is more than enough. I ran a 1806 Edelbrock on my J10 and was able to do all class VI roads and even some hard stuff with ease. I picked up an off-road conversion kit for the 1806 just incase I needed it. Make sure that you water proof some electrical stuff and run a snorkel into the cab if you plan on doing some deep mud.

If you are going to be doing hill climbs, the 1826 is a great choice.

If you are going to be hitting the rocks along with everything else, swap in the MPFI that you have. Yes you'll have to deal with the wiring now, but you'll be in a much better place later on.

 

hay Bob a tip i got from a guy that road raced 50s corvettes. if they spun out the pressure vent from side to side on the WCFB would flood out. the fix was epoxie the vent closed. i started doing that to the AFBs, never any trouble. not that i realy needed it.

 

Yeah for the time being it will mostly be mud and trails. There just isn't much of a market for heavy duty rock climbing around me.

 

All my Magnums except my SS/T use a 600 squarebore or 650 spreadbore Holleys like this