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#728556 - October 05th 2017 1:02 pm WANTED-Dodge 318 parts  
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Reed Offline
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I am looking for a set of AC compressor brackets that will fit a 1983 Dodge 318. Serpentine belt setups from ther later motors won't work.

I am also looking for either an Offenhauser Dual-Port or an Edelbrock SP2P intake manifold for a 318.

Cheaper the better, the closer to Tacoma, WA the better.

I am on a tight budget ad hoping to spend about $100 for both the intake and brackets. But I know that ight be unreasonable.

Any leads appreciated.


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#728611 - October 06th 2017 10:00 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Updated- I got the intake sorted, still need the brackets.


Windows- they're what make a van worth owning!
#728700 - October 09th 2017 5:26 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Ann Abor Michigan
Curious, what intake did ya end up getting fot it? Worked on many a 318. Rock solid motors.

#728701 - October 09th 2017 5:45 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Interesting story. About five years ago I had a 1983 Dodge shorty van with a 318 that I ghavce to a friend of mine. I also gave him an Edelbrock SP2P-318 two barrel intake. Well, he saw my ad looking for an intake on another forum and gave the intake back to me. So I ended up getting an Edelbrock SP2P 318 two barrel intake. It has provisions for EGR and works with the stock carb, so really it is a dual plane intake with tiny runners that will be a straight replacement for the stock intake. I am using it in a big heavy truck that has 3.2 gears, so even at 65-70 mph I am only spinning the motor around 2200-2400 RPM. That is why I was looking for one of those 70s economy/torque intakes like the SP2P or Dual-Port. I am not drag racing, I am trying to build as much low RPM torque and fuel economy as possible. I know these intakes only flow enough air to support a motor up to around 4000-4500 RPM, but that is plenty for the application. Plus, the price was right!

I still need the AC brackets, though. At least the intake I got will work with AC. Lots of aftermarket Mopar intakes won't.


Windows- they're what make a van worth owning!
#728777 - October 11th 2017 12:46 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Ann Abor Michigan
Only asked because some of the early 70's 318 stock intakes have an EGR crossover built into them that can clog up rock hard with carbon build up. They dont work real good until you clear that stuff outta there. When I say rock hard, man I do mean rock. I had to drill that crap out of the one on my old 72 Plymouth Voyager. It had been a Sears sevice van before I got it. The service guys in Michigan had let them sit and idle all all day to keep it warm in the winter. Blocked it right off...and cooked all the valves as well. Did a valve job and cleared out the above crossover issue, then drove it another nine years. I was just gonna give ya heads up if you didnt know about it. When you pull the intake on one like this its hard to see and easy to overlook.

#728778 - October 11th 2017 12:57 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Thanks. The manifold looks like it was never actually run on an engine. I will double check the exhaust crossover, though.


Windows- they're what make a van worth owning!
#728841 - October 12th 2017 3:06 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Does it really matter if the exhaust crossover is plugged? Lots of people block it off anyways, and lots of newer manifolds like the Air Gaps etc dont even have a crossover at all anyways. I ran my last 360 for years with the crossover blocked off and that thing ran like a champ.


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2005 E350 Cutaway Class C
#728842 - October 12th 2017 3:13 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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The engine will run fine without a crossover, but if you want optimal fuel economy and street-ability, you run the crossover to assist in full atomization of the fuel and to avoid carb icing. Factory engineers aren't dummies. That crossover was put there for a reason. People block the crossover or run an intake without it because a colder air charge will give more power. But if you drive your vehicle on the street and in any situation other than 1/4 drag racing, intake plenum heat is a very good thing to have. I will be using this truck as a daily driver so I am intersted in maximizing fuel economy and low RPM torque. I want functioning intake heating.


Windows- they're what make a van worth owning!
#728844 - October 12th 2017 5:12 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Turnkey Offline
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Ann Abor Michigan
I kinda figured they put it in there for a reason. I was a snot nosed kid then and prolly not the sharpest tool in the shed. I had the intake off to do a valve job and didnt notice it until I cleaned the intake up for re instalation after the valve job, then saw these black spots on each side of the intake running under the carb and saw some kinda port orifice in the intake plenum bottom. Then I looked into the same area on the heads which had been dipped and cleaned thoroughly and said hm....yep, somethings up with that? Man was that crap ever hard. I made a long home made drill bit out of some old 3/8" steel rod I had laying around and ground a fluted tip on the end and had to bore that hardened carbon shit outta there, it was like stone. Never bothered to look into its entire purpose back then, I just reasoned the factory put it in there for good reason and that it needed to be put back to normal. Thanks man, now I finally know what it was for! Forty years later!!!! Ha! Whata hoot! Lol!

#728846 - October 12th 2017 5:24 pm Re: WANTED-Dodge 318 parts [Re: Reed]  
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Yes, it serves an important purpose. Ih cold climates especially, but even in hot climates, the velocity of air moving through the carb and the intake can cool the carb to the point that ice forms in the throat of the carb and/or the air/fuel mixture cools to the point where the fuel drops out of suspension in the intake maniufold, especially at the 90 degree bend directly below the carb. While normally a cold air charge is good for power and economy, in this case too-cold air hurts performance and leads to stumbling and poor performance until the motor is thoroughly warmed up. This is why I would never run an intake without an exhaust crossover (or some other form of manifold floor heat) on any vehicle that I hoped to use to get decent economy on the street.

I play around with Chrysler slant sixes a lot, and on those engines the exhaust manifold is bolted directly to the intake manifold and there is an open hole on the top of the exhaust that is sealed by the floor of the intake directly below the carb. No crossover there, just 100% direct exhaust heat. On V-8s the heat riser (AKA flapper valve) that often get disconnected or removed created a small amount of backpressure which directed the exhaust gasses to the exhaust crossover to heat the intake. Once the engine warmed up, the spring on the exhaust riser relxed and the flap opened and less exhaust gasses flowed through the crossover.


Windows- they're what make a van worth owning!
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