What happens if you put a non Max Wedge intake on a Max Wedge head

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LXguy

LXguy

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Hey All:

Have a motor with Max Wedge Indy heads on it. Need to try some different intakes-most of which are not Max Wedge. Is the MW port basically just bigger than the standard port or is there going to be roof or floor misalignment?

I know this must be a stupid question because I can't turn up anything in a search...LOL

Thanks for any help,

Steve
 
Get some thin lexan from Home Depot, lay it on the head and scribe a template of the runners and the bolt holes. Put template on intake and see how much mismatch you'll have to deal with
 
I don't know, there is some tech info on Indy's site, I'd say contact them, or if not them, whoever ported? the heads
 
the max wedge port is taller and wider than the standard big block port.
some intakes can be opened up to the max wedge size.
 
You'll have a lot of mismatch. You might have a big vacuum leak so check carefully all around the port to see if you are even sealing to the head. Some manifolds might not even seal up the port.
 
Get a set of paper Max wedge Intake gaskets and then lay them on the non MW intake. If you have enough material to cover the openings in the gasket , it will work. But I would have to ask why? When there are so many Max Wedge intakes available.
 
indy makes a few intakes to fit your heads, their 440-1 heads are max size. go on line and look then buy from some one else because they are dicks to deal with.
 
I'd swear I posted this pic yesterday....

Cross-Ram-07.jpg
 
bOb shingler said:
indy makes a few intakes to fit your heads, their 440-1 heads are max size. go on line and look then buy from some one else because they are dicks to deal with.
Click to expand...

haha!

I've got Indy heads and an Indy single plane MW intake on the car. I need something with a lower height to gain some clearance to my stock Roadrunner hood. I'm planning to experiment with various alternative intakes and spacers on the dyno. Given that I have sort of a low lift camshaft, I don't think I need the flow from this intake.

I laid a MW gasket on a standard port gasket. If the ports on the head/intake decently approximate the ports on the gaskets, it should be ok. A smaller intake port going into a larger head port shouldn't cause a disruption in the flow, but we'll find out on the dyno...
 
Rather than going that route. I bought a AAR 6 pack hood for my Dart and saved the original steel hood in my storage. You could always change heads and intake later if you want.
 
Right, good idea. Unfortunately, nobody makes a hood for a 73 roadrunner...
 
If you were closer I have 2 US Body Source flat Fiberglass hoods for 71-74 Plymouth RR. You could always ad a scoop. Or if you contact US Body Source in Lake Land Fl. They will make you one with a scoop.
 
Gotcha. That's very generous. Thanks.

73-74 are different than 71-72. The earlier ones will bolt up, but they don't have the headlight bulge at the edges, so it would look funny.

The link you have only makes a stock replacement glass hood in fiberglass which isn't going to help with hood clearance to the carburetor. I could bolt a scoop onto that, but it would look kind of strange with a scoop on top of the bulge I think.
 
If your seriously thinking about a Fiberglass hood with like a 6 - pack scoop for your 73, PM me. I'm good friends with the people at US Body and I'm going there tomorrow. I can talk to Jim who is the Shop foreman/ wizard. I can ask him about one.
 
The Mopar 337 intake is a very low profile max wedge intake. It fits an RB block and has a 4150 flange. It makes really good power for such a low profile, my 514 made well over 800 hp with the 337 intake.
 
OK, that sounds great, but I've never heard of it. Is it some unobtainium thing I have to dig out of a bin at the Mopar Nats or can you buy them someplace?
 
Google "Mopar 337 intake" and you should find everything you need to know.
 
we added some matl to the port flange of a alum intake for running a single carb set up on my iron stage 3 mw headed rb . welding and then machining it was done in house . but later we went with the stage 3 crossed twin fours . even the new motor will run a new twin crossed fours from mopar with ported stage 6 mopar alums on a b block . i could dig it up and shot a pic of the mod , if you like .
 
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