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88 SC DAK
Dodge Dakota
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2/01/2003
20:45:12
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 Subject: Magnum Heads Early Intake
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Does anyone know if a somebody makes (or knows how to make) adapters or wedges to put a early non magnum intake on a magnum head engine. Thanks
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FazDak
GenII
2/01/2003
22:47:57
| RE: Magnum Heads Early Intake
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Have done some checking and I dont think it can be done.
Just put mag heads on a pre mag block and then the mag intake will work.
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88 SC DAK
Dodge Dakota
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2/01/2003
23:45:02
| RE: Magnum Heads Early Intake
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Thanks Faz but I'm not looking to use a mag intake. The blower intake I have is for the pre mag style heads. I'd really like to use the mag heads for the flow. I've heard of them but can't find who has or makes them. Guess it might be off to the machine shop to make something.
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Kowalski
Dodge Dakota
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2/02/2003
11:05:46
|  RE: Magnum Heads Early Intake
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You can't "Just put mag heads on a pre mag block",it won't oil right. It can be done, I think the fix is using AMC style lifters ? Anyone contemplating this should look into it.
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88 SC DAK
Dodge Dakota
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2/02/2003
11:49:39
| RE: Magnum Heads Early Intake
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Thanks Kowalski. You have to use the AMC lifters with hollow push rods so the oil can get to the rockers. I'd really like to keep the roller cam style. It'll get a complete rebuild when this is done, I'm getting the parts together or looking into getting them made to do this.
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FazDak
GenII
2/02/2003
17:06:13
| RE: Magnum Heads Early Intake
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I know you cant just throw mag heads on, I threw that out there to better find out what he was trying to do.
See if I have this now.........you have a pre mag (LA) block and intake and you want to use mag heads?
If so I dont think its possible and even if it was a machine shop is gonna charge you as much or close to a set of assembled Edelbrocks or even Indys both of which I'd rather have on a LA engine with a blower anyway. Besides, Indys flow #'s are better than production ported mags.
Just my .02, good luck.
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88 SC DAK
Dodge Dakota
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2/02/2003
17:44:39
| RE: Magnum Heads Early Intake
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Thats my problem. Nobody makes a aftermarket V6 head, I didn't mention this before because both 6 and 8 use the same amount of intake bolts. What I'm planning on doing is using a worked set of mag heads, block I don't think matters (please coeect me if I'm wrong on that one) with a modified pre mag intake (it's a roots style blower and needs the intake to bolt to). I was just hoping someone knew of the spacers to use an pre mag intake on a mag head. My friend has a machine shop so modifying something would be easy, easier yet would be finding something already made with the bugs worked out of it. Thanks again.
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FazDak
GenII
2/02/2003
19:20:51
| RE: Magnum Heads Early Intake
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Oh dude, you have confused me completely!!
Are you working on a 6 or 8? That makes a HUGE difference, I can give you quite a few articles where V8 mag heads have been adapted to LA blocks but none say that a LA intake has been fitted to mag heads because that would be counter productive.
All that being said thats all V8 stuff, your SOL if your actually working on a V6.
InntenseDak39 and I discussed (quite a while ago) making a decent intake for a V6 mag, him and I both weld and I have quite a bit of experence welding alumium and neither of us could come up with anything.
Its just to complicated going from angled mounting bolts holes (LA) to verticle (mag).
Good luck and if you come up with anything keep good notes and you may make some decent money reselling it.
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brianman
Dodge Dakota
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2/03/2003
14:20:11
| RE: Magnum Heads Early Intake
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you can put early small block intakes on magnum heads but it requires special bolt adapters. you see really all that has changed is angle at which the bolt enters the head. early heads have the bolts enter perpendicular or very close to that, where as magnums have the bolts enter at a 45 degree angle. its along the same lines as when chevy switched to the vortec heads. the adapters are nothing more than little wedges of metal with a hole in them. i bet a local machinist could whip up a pair in no time.
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88 SC DAK
Dodge Dakota
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2/03/2003
20:53:29
| RE: Magnum Heads Early Intake
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Thanks Brianman, that's pretty much what I'm looking for but was hoping somebody made that at a reasonable cost. Thanks Again
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Jason Teague
Dodge Dakota
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2/03/2003
22:18:33
|  RE: Magnum Heads Early Intake
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88 SC DAK, I just happen to have what you are looking for. I tried to use a pre-mag intake on a mag motor and it would not work, The Mag has a taller deck height, making the non-mag intake to narrow. It will work with a pre mag block and mag heads (use AMC lifters as said earlier for upper end oiling). Anyway, back to the adapters. I had the local machine shop make me some adapters out of round aluminum stock, they are drilled and cut to the right angle to match the manifold. I have no use for them now and they are taking up space in my tool box, So if you want them, they are yours just pay the shipping.
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88 SC DAK
Dodge Dakota
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2/04/2003
18:59:47
| RE: Magnum Heads Early Intake
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Thanks Jason, but are you sure about the block on the the deck height? I've never heard of the deck height being different on the mag and pre mag. Jim
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FazDak
GenII
2/04/2003
21:27:35
| RE: Magnum Heads Early Intake
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Jason, are you for real?
I have set a premag intake on LA heads before and I can see no possable way for them to adapt.
IF you have a bolt hole in the head (mag) going in at say this angle..............l............... and an intake that has a bolt hole angle of this .............../...................., I would like to know exctly how an "adapter" can be made that will still keep the intake flat on the head and block surfaces when a bolt has to pass between both areas that are VERY dissimilar?
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88 SC DAK
Dodge Dakota
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2/04/2003
22:10:08
| RE: Magnum Heads Early Intake
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Faz I found out today there is a company that makes adapters (if thats what you want to call them). You have to elongate the bolt hole on the intake and just put this on it with the bolt. The company is Treco, probaly not the right spelling. The guy I talked to said he'll find the company and give it to me. As long as the bolts are in the same spot the intake can be modified to work with the mag heads. He'll get in touch with a guy that has an early intake with mag heads for the company name, hopefully it'll be spelled right. I'll let you know what happens. Now about this deck height being different that still don't sound right to me.
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Jason Teague
Dodge Dakota
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2/04/2003
22:14:24
|  RE: Magnum Heads Early Intake
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FazDak, I'm sure. A company named TICO racing did this swap in a past Mopar Muscle magazine (October '98.) Their # is (517) 688-8426. All they did to the manifold was elongate the bolt holes, either with a die grinder or a drill press so the 5/16 magnum intake bolts will clear, pre-mags had 3/8 intake bolts. Use spacers cut at a 45 and straight on the other end and the manifold will bolt up. For 88 SC Dak, I know for sure on a V-8 the deck hieght is different between a production Mag assembly and a LA assembly. The LA intake will be too narrow for the Mag. I Don't know if this is true on the V-6ers. The best advise I can give to you both is to call TICO and they will set you straight. Hope this helps.
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88 SC DAK
Dodge Dakota
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2/04/2003
22:46:12
| RE: Magnum Heads Early Intake
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This might sound dumb but why would Tico make these adapters if the intakes are a different width?
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Jason Teague
Dodge Dakota
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2/04/2003
22:57:46
| RE: Magnum Heads Early Intake
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They make the adapters to adapt a pre mag motor with mag heads to use a pre mag intake, not to bolt a pre mag intake on an actual mag motor.
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88 SC DAK
Dodge Dakota
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2/05/2003
17:35:33
| RE: Magnum Heads Early Intake
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Like I said it was a stupid question. But it still doesn't make sense that the mags have a different deck height. It's the same bore and stroke. If the deck height were different wouldn't that change the displacement? The 72 318 has the same bore and stroke as a 96 5.2 mag and a 78 360 has the same bore and stroke as a 2001 5.9.
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88 SC DAK
Dodge Dakota
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2/05/2003
20:05:10
| RE: Magnum Heads Early Intake
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I should also say that both the LA and Mag are 90 degree.
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Jason Teague
Dodge Dakota
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2/05/2003
22:43:46
|  RE: Magnum Heads Early Intake
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88 SC Dak, just look in your 2002 MP catalog to prove my point, Pg 41. Check the deck hieght specs for the P5007549 & P4876913 short blocks. They are different. The MPI Magnum 5.9L is taller. The MPI replacement block which is the same as what is in any 93-up truck except for a double roller chain, M-1 intake, and R/T cam. Ford did the same thing with the 302, as did Chevrolet with the 427. Bore, stroke, and angle are the same. They just raised the pin height on the pistons to compensate for the added hieght of the deck.
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88 SC DAK
Dodge Dakota
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2/05/2003
23:50:55
| RE: Magnum Heads Early Intake
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I see what you mean on the 7549 but on the bottom in the notes it says that production 1968 - 91 340/360 intake manifolds can be used on magnum engines with attaching screw hole modifications. Couldn't find my 02 so this is from an 01 book on page 72. The 6913 engine has a deck height of 9.56, the same as the other 3 and the 7549 is 9.595 by it self. I'm not trying to be a jerk just looking for some answers.
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steve
Dodge Dakota
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2/06/2003
17:32:40
| RE: Magnum Heads Early Intake
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pre mag have oil holes in block.mag motors oil thur push rods.so use pre mag heads,change to 360 1.88 int,160 ext.valves,spring for anew set of push rods thats hallow or have the block drilled its marked when the heads are off.you can do this yourself.then your intake will work and put the money into a good port job.this works fine i,ve put mag v6 heads on pre mag v6 motor and it worked fine....
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Jason Teague
Dodge Dakota
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2/06/2003
21:33:25
| RE: Magnum Heads Early Intake
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88 SC Dak, I don't think you are trying to be a jerk, for the record. Anyway the other so called Magnum motors (the 906 & 913) are basically an LA motors w/ mag cams. What it all boils down to is; find you some mag heads for your non-mag motor, along with AMC lifters, & hollow pushrods. Then find a suitable non-mag intake, elongate the bolt holes so the bolts will clear, and use adapters to bolt it on and your set. By the way, I am still offering the adapters if you want them.
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FazDak
GenII
2/07/2003
17:09:14
| RE: Magnum Heads Early Intake
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I see what you guys are getting at now, yeah in the old days they adapted LA intakes to mags because there were no other alternatives, now there are so its not common practice anymore I guess.
I'll give you guys my opinion on this one.
I have had and built alot of LA Mopars and have never had any of the intakes seal up or stay sealed up, specially with any resurfacing to the heads. You have to remeber that the TQ sequence and proper seat is important and if you do this method of "adapting" than I dont see how it can have a very good seal specially with no bosses for the bolts to put pressure on.
Just my .02 and I understand you have an intake that would cost you alot or not even be available in mag stuff.
Good luck.
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