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matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
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Posted: Sep/30/2018 at 10:16am |
anybody ever modified this header to fit the small car hornet/ concord ?
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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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1982AMCConcord
AMC Addicted Joined: Jul/13/2012 Location: Kenosha, WI Status: Offline Points: 1286 |
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Hey there Matty.. I was told by a very good friend... who knows way more than me... that this would not be worth it at all because it would require basically hacking it all up into pieces and basically using a lot new tubing. He said if he were going to do it.. he'd just start with a custom flange and build a custom header from scratch. Clifford is the only company that makes a header for a 258 in the U.S. and they are not very good. I have read several times over the years that the quality of Clifford's stuff is not good out of the box. Clifford parts all need some degree of modification to work properly. The only other thing I would mention is that I am friends with several VAM guys from Mexico on Facebook and the Mexican 258 headers do show up there from time to time. I would say if you are on Facebook to friend some VAM guys and like their VAM pages. They have the edge on AMC I-6 performance parts South of the boarder.
Edited by 1982AMCConcord - Oct/02/2018 at 7:24am |
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matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
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thanks for answering my question maybe if i could find a used one from a VAM 258 i could make that work along with the intake that uses the bigger ford style carb
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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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1982AMCConcord
AMC Addicted Joined: Jul/13/2012 Location: Kenosha, WI Status: Offline Points: 1286 |
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That would be nice to have have a matching set but just so you know.. there is no significant advantage to the intake with the 2100 flange. Its not any better than the later 81 and later aluminum intake. I would just use an Offenhauser 5451 adapter... its the best one. https://www.summitracing.com/parts/ofy-5451 There are other versions made by different manufacturers but I have read they don't seal as well. I have this adapter and its a good piece. I haven't used it yet but I got a stupid good ebay deal on it... along with an original AMC 2100 1.08 carb... so I just couldn't pass it up. |
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matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
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i have a factory aluminum intake for the 258 and the matching exhaust manifold the car is a 79 Concord 71000 original miles runs real sweet just looking for a bit more punch short of going to a V8
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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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1982AMCConcord
AMC Addicted Joined: Jul/13/2012 Location: Kenosha, WI Status: Offline Points: 1286 |
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It can certainly be had with the right parts. I would say you are halfway there with the 2100 carb upgrade. You might also want to consider the MIU as well. http://www.amceaglesden.com/images/Downloads/MIU.pdf
Also... I also deleted ALL my emissions stuff.... no AIR tube... or AIR pump... no cat... no emissions related vacuum lines. My car runs way better now. Once all that is all deleted.. technically you can delete the computer too... which is what I am going to do once I put on the 2100. After the feedback carb is gone.. the computer no longer has a real job to do. |
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matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
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mine does not have a feed back BBD and i have a 2100 carb off a 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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1982AMCConcord
AMC Addicted Joined: Jul/13/2012 Location: Kenosha, WI Status: Offline Points: 1286 |
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Right.. I meant the previous original BBD carb... once that's gone...
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matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
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air pump is gone but the tubes are still on the exhaust manifold the hose is plugged lol no cat either running a two chamber muffler with tail pipe also
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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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1982AMCConcord
AMC Addicted Joined: Jul/13/2012 Location: Kenosha, WI Status: Offline Points: 1286 |
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You can get plugs for the AIR ports at NAPA... don't remember the part number but they are available specifically for our cars. Mine are blocked. One of the best things I ever did. It made the engine overall quieter... especially once that gerbil cage AIR pump is gone! LOL...
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