My friend has an '75 dodge 318 with a two barrel manifold on it. the question is what 4 barrel manifolds will fit his motor? I've heard that 318/340/360 cubic inch mopar motors can all swap the manifolds, but is that true? Are there any variations from year to year that would prevent that? Thanks a lot for looking
In all my tears of taking them apart the only difference that I,ve seen is that the 360 used a composition intake gasket while the 318 and 340 were steel.This was while working at the dealership using factory correct parts. My buddy has a 340 intake on his 360.....don,t know what style of a gasket he used.
All LA sm blks serie intakes will fit (W2 intakes will not fit aftr markt oval ports).318's have a little smaller intake port on the head than 340/360 but that will not interfere with the installation.Use a good 340/360 felpro type composite gasket and do not use the cork ends use good high silicone on the ends.Using the cork ends is a sure way for a leak.If I were going factory cast iron I would use a early 340 manifold without the egr provisions.This is probl the best.May have to use a carb adapter depending on what carb you want to run.The alumn intake world is wide open on choices depending on what you are going to do with the engine,I would say for just basic use a Eldebrock preformer would be a good one and can usually be found on the cheap at swaps.Hope this helps. And good luck. Shoe
********************************************************** Excuse me!?....a one-barrel manifold on a '75, 318? You might want to know what you're talking about before you ask the question. That combination would not have existed. Besides....this forum is for OLD CARS, and 1975 doesn't qualify. I suggest you go over to Moparts BB to ask this question, and quit bothering the old car guys. Roger.....another FNG
WTF? A lot of those "old" cars have newer engines . . . we're not all obsessed with putting a flat head V8 or a banger motor in something. My dad has a 1970's based 318 . . . but its in a 1942 Chevy Aerosedan. I'd suggest sitting back and enjoying the forums before you jump in and try policing them. Jeez.
Relax and take another Pamprin - It's not like he posted pix of his '75 and expected us to drool all over it. Besides, you dont' know what it's going to go into. Could be this mill is destined for a bitchin' rod. And, if I may add, you have a selection of cars that isn't exactly ancient either... Cars: '81 Dodge/Mitsubishi Challenger, slant 6 powered, drag car '68 Dodge Dart GT, original 318 car, now 360 powered street toy. Just aquired! '23 T-bucket "kit" car, traditional rolling chassis, 'glass tub, intend to power it with a slant six None of these are traditional "rods" except for the bucket but that's glass and you're using a slant 6, which last time I checked is not traditional either. Don't get me wrong, the leaning tower of power is a great motor, but you're barking up the wrong tree here Those who drive glass buckets shouldn't throw stones. Maybe you should should take your advice... Be quiet and let the rest of the class learn something.
What year is the engine in your old car FNG? Come on, let's here the witty response about your logon name. You will find a lot of 30's, 40's and 50's cars here with 70's and even 80's engines in them. Concentrate more on helping and less on being a shithead.
well it's not my engine and I'm doing him a favor, plus the '75 318 motor is actually in a 60 bel air, so ah yeah, get bent
Its been a LOTTA years since I raced one , but Chrysler used to put out a performance guide for those engines. There were head swaps and such that actually required clearancing the tops of the cylinder bores for valve clearance. When I was done, our car outpulled every other down the straights, but I could never get the sumbitch to negotiate a turn. Cant blame the engine for that. It was the accident of birth that didnt give me enough understanding of corners. In my experience there were two vastly overlooked engines. The 318 Mopar and the 289 Ford. Done up right, these engines are AWESOME !
"(BTW....those 1904's all have the glass float bowl. Polish up the floats and run purple racing fuel for some eye candy?)" Now thats not what I call traditional since we all know that "In the day" they had red racing gas and purple didnt come out till the 90's. Give the dude a break man he asked a question and I would not say you quailfy as a old car guy if ya got a kit car.
Ya know what, guys? You are all correct. I opened my mouth and proceeded to step on my own crank. To Michael....I offer an appology. I also suggest you or your friend take a closer look at that carb. Unless somebody adapted it to that engine, that "package" is not correct. All "A" small blocks, (with the exception of early 273 inch") intakes should interchange. If I'm not mistaken you can even use newer Magnum stuff, but you have to use the heads along with it. To the rest of you....You all seem to have a problem with what's listed in my profile. I wasn't aware there were certain requirements as to taste in cars to register here. As for the "kit car" thing...sometimes ya gotta use what's available to you. Other than that, I'm done. Roger
ah, no worries roger dodger, you were right it is a two barrel but he still wants a four barrel for it, so it all works out
No harm no foul here man.I am glad to see that you rethought your reply because I felt the guy ask a legit question and was bein flamed.I made the comment to your profile because alot of things can be interupted alot of different ways.And it was a shitty thing on my part to call you out on it but as you can see it all most looked like the kettle callin the pot black. Now lets all get along. I am really glad to see your buildin a rod with a slant six because they can really make some HP when done right.Post up some pics so we can see the progress.The only draw back I see to leaning towers of power might be the length in a bucket.Goodluck on build'in your T bucket. Shoe
I see this bumped back up while I was reading other posts. If your buddy starts looking at new stuff, be real cautious of new, unmarked aluminum intakes. There's a lot of crap coming in from China, and I understand it leaves a LOT to be desired. If he's gotta go new, buy a well-known brand name. Roger
the 273 will interchange.....had a 340 intake on my first 273...the cranks are the same except for the 360.....rods were also interchangable....brandon
This is correct .Also would add that 318/340/360 heads will fit on a 273 but the block must be relieved in the tops of the bores for valve clearance.Also a early 273 intake can be used if the mounting holes are redrilled.The early 273 intake bolts ran at a slightly different angle in the head.
Having built a few 318's I recommend staying with a dual plane like an Eelbrock Performer or a Mopar Performance dual plane. Unless you're into high revving, the 318 needs all the torque it can get and a dual plane really helps there. Also those two manifolds come closest in size to the 318's ports. If your buddy starts looking at new stuff, be real cautious of new, unmarked aluminum intakes. [QUOTE: There's a lot of crap coming in from China, and I understand it leaves a LOT to be desired. If he's gotta go new, buy a well-known brand name] Good advice! I ran a 600 cfm dbl pumper on an Edelbrock and it did great, that's enough cfm. Mopar performance has some great books that tell it like it is: P4876825 big block B/RB engine 28.50 P4876826 small block A engines 32.00 I got mine from these folks, they were honest, efficient and quick in getting my stuff to me: http://www.mopartsracing.com/parts/books.html Good Luck with the 318, they're neat little engines to play with!!!
So it looks like you got your answers on the intake, good ones too. Now, what were you going to do with that 2 bbl carb your taking off the 318?????? I sure could use one. If your thinking of "getting rid of it" I'm interested! PM me price and possible shipping info. Seriously. Gene
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