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| headers or dutra duals ? https://www.slantsix.org/forum/viewtopic.php?t=34561 |
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| Author: | prattwithney [ Sat Mar 28, 2009 9:56 am ] |
| Post subject: | headers or dutra duals ? |
Hi, for my french 65 dart with 170 ci and automatic transmission, i don't know what to choice ? The engine will be mild tune at least. Today, the engine runs with a clifford intake manifold, a 390ci holley four barrel, and a electronic ignition. I want to increase valves, cut the head, and probably change the aac. What kind of exhaust does i need? I read topics about dutra duals, and seem to be good, but i also see the job of Bren67cuda904 with clifford headers. What will be the most logical choice ? maybe th dutra because less expensive. But for performance ? Thanks Mat from France alone with a slant in a country who people prefer V8. |
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| Author: | Joshie225 [ Sat Mar 28, 2009 10:15 am ] |
| Post subject: | |
Since there are no off the shelf headers that fit the low-deck 170... |
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| Author: | prattwithney [ Sat Mar 28, 2009 10:20 am ] |
| Post subject: | |
Could you please explain a little bit "Since there are no off the shelf headers that fit the low-deck 170" Thanks |
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| Author: | ceej [ Sat Mar 28, 2009 10:43 am ] |
| Post subject: | |
Your going to be modifying the headers, or scratch building a set. CJ |
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| Author: | SlantSixDan [ Sat Mar 28, 2009 11:13 am ] |
| Post subject: | |
The 170 engine's exhaust ports are 25mm lower than the 225's ports. The bottom of the block sits in the same place no matter whether it's a 170 or a 225. Headers are built only for the 225; the lower ports on the 170 prevent headers fitting on the 170 without hitting various components. Dutra Duals are probably a better choice anyway. |
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| Author: | NewSlanter [ Sat Mar 28, 2009 11:16 am ] |
| Post subject: | |
excuses pour l'eppelation et le grammaire, je n'ai pas ecrit en francais pendant 10 annes. Il n'y a personne qui construit les "headers" (Je ne sais pas le mot francais pour "headers") pour le moteur 170. Le bloc est plus court sur le 170 que celui du 225, ainsi les "headers" pour le 225 doivent etre modifies ou faits pour adapter le moteur plus petit. |
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| Author: | SlantSixDan [ Sat Mar 28, 2009 11:38 am ] |
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Moi, je suis Anglophone par premier langue, mais à mon avis, ton francais est tellement raisonablement chouette. Je ne sais pas le mot juste pour «headers» en francais, moi-même, mais je crois que tu as envoyé les infos assez clairment...voyons que penserez m. de la Dart francais, hein! 
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| Author: | prattwithney [ Sun Mar 29, 2009 1:26 am ] |
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Merci New Slanter et SlantsixDan pour vos commentaires en Français et la maitrise de la langue. Votre effort me touche beaucoup. Ok, I've understood that i can't put headers because of the low deck exhaust block. Headers like Hooker are built for 225 ci, but i knew that clifford produce headers for 170 ci ! is this real ? As i could read in topics, deal with clifford is not efficiency. Then, as you propose Dan, i will ask Mr Dutra . |
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| Author: | prattwithney [ Sun Mar 29, 2009 1:29 am ] |
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Au fait, Headers in french are " collecteurs d'échappement". |
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| Author: | slantzilla [ Sun Mar 29, 2009 10:28 am ] |
| Post subject: | |
Clifford has not built 170 headers for a long time. Hookers will not fit a '66 and earlier A-body no matter what engine you have. Some board members worked with a couple header builders a couple years ago to get 170 headers built, but both guys turned out to be a con artists and none got built. 
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