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290 intake on a 401 |
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401harry
AMC Addicted Joined: Sep/27/2011 Location: Clearwater,Fl Status: Offline Points: 758 |
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Air Gap is the best all around manifold available right now for an AMC V8 IMO. Dont be concerned about runner size length just put a smaller carb on it to speed up velocity and signal. I would run an Eddy 500 on your air gap for the 290 or if its cammed up maybe a 600. I run a 600 on a 401 on the street and a 750 for the track on an air gap. Takes me 10 minutes to change carbs
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Snotty
AMC Addicted Joined: Mar/28/2014 Location: Chico, CA Status: Offline Points: 1247 |
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According to the Eddy available from Summit, the one for the 290 up to the 390 is not intended for the 401. Check the applications below. https://www.summitracing.com/parts/edl-7530/applications |
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Son's car: '73 Gremlin X, 401, T-10, Mopar 8.75 rear with 3.23 sure grip. My car: '70 Newport Convertible, 440 automatic
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Sonic Silver
Supporter of TheAMCForum Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 7901 |
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Snotty
AMC Addicted Joined: Mar/28/2014 Location: Chico, CA Status: Offline Points: 1247 |
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Very well.
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Son's car: '73 Gremlin X, 401, T-10, Mopar 8.75 rear with 3.23 sure grip. My car: '70 Newport Convertible, 440 automatic
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19610 |
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I thought the runner size might be the same, but didn't know for sure. With people mentioning not using a 290 intake on a 401 I thought something might be different... other than the center bolt holes and slight port offset. The deck of the later engines was raised about 1/16", so not much of a port difference. Gasket matching should take care of that on the smallish runner intake, but be careful about grinding on the head itself -- could make it hard to match a correct year intake later.
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Frank Swygert
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matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
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i used a 343 intake on my 304
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72 matador 401 the beast
79 concord 2 door 72 matador 304 grasshopper 68 Rogue 406 93 Cherokee 4.0 5 speed |
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raysinvegas
AMC Addicted Joined: Jul/01/2007 Location: Las Vegas NV Status: Offline Points: 2501 |
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I would think the guy WHO WORKS AT EDELBROCK would have the definitive answer! |
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Andy Ray
64 440H 64 440 Convertible 68 Javelin SST 343 69 Javelin SST 343 69 SC/Rambler |
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Sonic Silver
Supporter of TheAMCForum Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 7901 |
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