Re: Mopar 337 intake
[Re: racerAL]
#1997863
01/24/16 07:44 PM
01/24/16 07:44 PM
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Joined: Jan 2003
Posts: 3,616 Riverside, Ca
G_bob
master
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master
Joined: Jan 2003
Posts: 3,616
Riverside, Ca
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both intakes are standard port as are my heads. That's interesting, because the MP online cantalog shows the P4876337, P4876128 & P4876129 intakes as all being max wedge ports. With the 337 being for 4150 carb, max wedge, and stock heads. The 129 being for 4500 carb, max wedge stage VI heads. And the 128 being for "four barrel carb", max wedge stage VI heads. Not sure is that "four barrel carb" on the 128 means it will handle both 4150 and 4500. I'm looking for a lower profile 4500 alternative to the super Victor on the Eddie super victor max wedge heads.
Last edited by G_bob; 01/24/16 08:20 PM.
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Re: Mopar 337 intake
[Re: G_bob]
#1997981
01/24/16 10:23 PM
01/24/16 10:23 PM
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Joined: Jan 2003
Posts: 31,200 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,200
Oregon
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both intakes are standard port as are my heads. That's interesting, because the MP online cantalog shows the P4876337, P4876128 & P4876129 intakes as all being max wedge ports. With the 337 being for 4150 carb, max wedge, and stock heads. The 129 being for 4500 carb, max wedge stage VI heads. And the 128 being for "four barrel carb", max wedge stage VI heads. Not sure is that "four barrel carb" on the 128 means it will handle both 4150 and 4500. I'm looking for a lower profile 4500 alternative to the super Victor on the Eddie super victor max wedge heads. You might be able to rework the plenum with a 4500 bolt pattern and then it would be a lower profile alternative to the Super Victor. When you add a 4150 to 4500 adapter on top of the 337 it gets about as tall as a Super Victor.
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Re: Mopar 337 intake
[Re: AndyF]
#1998410
01/25/16 03:09 PM
01/25/16 03:09 PM
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Joined: Oct 2007
Posts: 535 Ohio
racerAL
mopar
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mopar
Joined: Oct 2007
Posts: 535
Ohio
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both intakes are standard port as are my heads. That's interesting, because the MP online cantalog shows the P4876337, P4876128 & P4876129 intakes as all being max wedge ports. With the 337 being for 4150 carb, max wedge, and stock heads. The 129 being for 4500 carb, max wedge stage VI heads. And the 128 being for "four barrel carb", max wedge stage VI heads. Not sure is that "four barrel carb" on the 128 means it will handle both 4150 and 4500. I'm looking for a lower profile 4500 alternative to the super Victor on the Eddie super victor max wedge heads. You might be able to rework the plenum with a 4500 bolt pattern and then it would be a lower profile alternative to the Super Victor. When you add a 4150 to 4500 adapter on top of the 337 it gets about as tall as a Super Victor. I stand corrected, the 337 is advertised as having max wedge port..but I'm not sure how close it is to actually max wedge port size. My standard port MP aluminum 452's are not max wedge and I'm certain there was very little difference in the port size from the intake t o the cylinder head. I'm also certain I didn't use max wedge gaskets.
-1967 Plymouth Satellite #3555 446 cid on E-85 best 1/4 et 10.577 @ 127.58 best 1/8 et 6.722 @ 100.68 best 60ft. 1.419
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Re: Mopar 337 intake
[Re: AndyF]
#1998425
01/25/16 03:28 PM
01/25/16 03:28 PM
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Joined: Jan 2003
Posts: 9,924 Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,924
Weddington, N.C.
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As I mentioned above, the 337 is not as tall nor nearly as wide as the true MW window. I think they did this on purpose so a well ported 906 size port could consider it as an option.
Before sending my manifold to Larry I scribed the port match to my heads and gaskets, there was a good bit of width and some roof height grinding to get it there.
I went back and saw some dyno sheets from a 572" 4.5 x 4.5 (I'm sorry can't remember whether it was Firefighters or Old Schools but compared side by side their 2d vs the 337 each with a 1" open spacer the peak results were pretty 'close' 713.9 @ 4600 to 721.2 @ 4500 on torque and 697.3 @ 5700 to 705.2 @ 5800 on HP, my motor is "only" 517 and the 2D I had was deeper ported, so you can probably see why I wasn't in any real hurry to swap. the 337 was more, just not that much more. I also think (to make it true "apples to apples" fair fight) the 2D could have been tested with a larger carb (the 337 had 1050/4150 and the 2d only had an 850/4150?). If anything a dual plane generally wants MORE CFM to compensate for the divided plenum, a single plane (as we all know) allows each port to access all four barrels of the carb. I've been running a 1000cfm/4150 Pro systems on mine with both manifolds.
Last edited by Streetwize; 01/25/16 03:50 PM.
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Re: Mopar 337 intake
[Re: DblOJoe]
#1998446
01/25/16 03:54 PM
01/25/16 03:54 PM
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Joined: Aug 2006
Posts: 290 Cincinnati, Ohio
d7cook
enthusiast
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enthusiast
Joined: Aug 2006
Posts: 290
Cincinnati, Ohio
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I have a 337 intake on MW ported Performers. I use a 1050 Dominator on an adapter and it works great. As delivered the ports are right in between std and MW. Having the built in valley tray is a huge plus. I've always been surprised this intake hasn't caught on more than it has.
1967 Coronet, 1989 Daytona tube chassis.
Former cars, 66 Charger, 67 R/T, 69 Coronet, 67 Dart GT.
-Banned for life from V8Buick.com-
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