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mistery about SB cylinder heads casting number

Started by Nacho-RT74, January 29, 2017, 07:56:22 PM

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Nacho-RT74

these are suposelly used on 273 and were made in Mexico. Closed chambers. But I can't find anything of them on the web

Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html