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zerv77
Dodge Dakota
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4/13/2006
12:59:53
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 Subject: '71 318 swap
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what are the odds of getting a 318 out of a '71 dart to bolt all nice and tight into a '92 V6? Anything and everything thats not needed is getting ripped out of there.....cruise,A/C,...etc. I know I'll need new mounts and what not but does anybody know about the tranny(5 speed) matching up? I know it's highly unlikely mine will. What years can I swap the tranny with? Any info on it would help. THX
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gen1dak
Dodge Dakota
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4/13/2006
20:58:43
|  RE: '71 318 swap
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The tranny will match up fine. One thing. If the '71 was an automatic, the crank most likely won't have the pilot shaft bushing in the end of the crankshaft. You have to have this, or I have heard of an adapter setup that lets you do it without having the crank drilled and bushed like OEM. You can use either starter. Imagine that. A '92 that has a '71 starter. I kinda miss that old Mopar starter sound.
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zerv77
Dodge Dakota
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4/13/2006
21:15:28
|  RE: '71 318 swap
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Thanks gen1dak! I couldnt pass up the motor. I got it for a 100 bucks off ebay. guy said i could have put it in as is but I just figured I might as well redo everything in it while it was out. Sure as he!! beats having to fix it all after I already had it dropped in. I am kinda kicking around the idea of boring it out. And I am definately putting on a new intake manifold and carb. Screw that 2bl stuff!
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gen1dak
Dodge Dakota
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4/13/2006
22:14:23
| RE: '71 318 swap
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Those early 318 blocks are better quality...higher nickel content. Also, while they have "light-duty" connecting rods, they are still beefier than Chevy rods. My '69 318 was run to 5,800rpm repeatedly on a daily basis...never broke. The non-roller cam means a lighter valvetrain (almost 2 pounds lighter) because there are no heavy roller mechanisms in the tappets. That, with the lighter con rods means an engine that'll rev quicker, and HP not spent spinning up the engine goes to the wheels. If you pull the pistons, put in a set of moly-coated piston rings. Mopar used them in their service engines (cop cars, etc), and they are proven performers. Cylinder wear is cut dramatically. If you're really gonna run that engine, get some aftermarket con rod bolts...preferably from ARP.
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gen1dak
Dodge Dakota
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4/13/2006
22:16:33
| RE: '71 318 swap
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I guess you wanna keep it near stock for now. 4V carb is okay. Anything more would eat that tranny up.
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Obio3
Dodge Dakota
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4/15/2006
15:06:02
| RE: '71 318 swap
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Before you get to carried away, Check the HP/torq on that engine. Far as I can recall 71 was a terrible year as it was the begaining age of emissions. I have no books left on this age or I could tell you > One I recall is the 289 in the Bronco. Had a 68 and if memery serves me, It had 210HP. In 1971 the same engine had 145HP even though it was bored out to a 302. They really droped down. this was not a Ford problem. It was every manufacturers problem. I hope you get lucky. If not you will need to switch pretty much everything but the block to get old tech HP. Be sure you check the heads. Very possible you'll need differant ones of them also. Those old enough well recall terrible gas milage was standard equipment that came with these engines.
So many problems .... So little time
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gen1dak
Dodge Dakota
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4/15/2006
22:48:15
| RE: '71 318 swap
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The '71 will run great on cheap gas, and it'll do a helluva lot better than the horribly choked down late 80's 318's.
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gen1dak
Dodge Dakota
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4/15/2006
22:49:17
| RE: '71 318 swap
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Did I say "cheap gas"? I meant regular gas. None of it's cheap now.
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Obio3
Dodge Dakota
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4/15/2006
23:50:59
| RE: '71 318 swap
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Sure hope your correct. I'd still check the stats on it and used the best HP barts available. Talking the things to be used stock. Well aware of the 80's chit. 70's was the start as I stated. To change a 289 to a 302 and lose 70 HP isn't exactly desirable. All engines were suffering but yes it got worse
So many problems .... So little time
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Obio3
Dodge Dakota
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4/16/2006
00:53:17
| RE: '71 318 swap
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Gen1Dak .... Your right. The 71 318 had 230 HP. I was working from memery. NOW, the 1972 318 dropped to 150 HP and stays there for a few years. So I was only off one year.My concern was him posibly losing 80 HP stock. Bronco 289/302 had to also be 72 year model. Anyway long as he is sure it is a 71 318 he is in good shape
So many problems .... So little time
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vern
Dodge Dakota
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4/16/2006
06:06:44
| RE: '71 318 swap
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it does,nt really matter what yr it is if zerv77
is redoing it like he posted,one change they did around 70 was they went from full floating pistons to pressed wrist pins
point being you can change the cam,put higher compression pistons or mill the heads or both,
change to 340 or 360 heads and the list goes on
and as far as the 80,s 318 being no good for power the cop 318,s had most of the same HD parts as the LITTLE RED EXPRESS 360 did, so not all was lost in the 80,s
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gen1dak
Dodge Dakota
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4/16/2006
21:02:55
| RE: '71 318 swap
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The 318 went to pressed pins and heavy-duty rods (same as the 340/360 rods) in '73, before that they were full-floating.
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zerv77
Dodge Dakota
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4/17/2006
11:21:03
| RE: '71 318 swap
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THX guys! Money is kinda tight right now so not a whole lot is going to get changed.....for now. I do know that the motor that's in the truck now is getting tired. 220,000+ miles and counting. Though nothing major has gone wrong I can tell it's losing power. so I figured why not just drop in something a little beefier with some more a$$ behind it. Don't know a lot about carbs though so if anybody has any input on that, I would appreciate it.
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gen1dak
Dodge Dakota
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4/17/2006
21:14:03
| RE: '71 318 swap
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On a stock 318, a 500-600cfm carb is all you need. A 600 will carry you through quite a few hop-up mods as well. 318's are happy with any reasonable setup as far as tuning goes, meaning, you gotta really miss it to make it run bad.
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zerv77
Dodge Dakota
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4/20/2006
10:37:16
| RE: '71 318 swap
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I heard that putting a 4bl on would give better gas mileage and obviously more power than the 2 bl.....only get better mileage as long as I can stay out of the back two barrels all the time.......yeah right!!! I think I'll take my chances with the 4bl. But seriously should I just go with Edlebrock or does anybody know of anybody else that makes a good yet decently priced carb?
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