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08-21-2003 12:02 AM #7
I am told that the best head for a 400 if you must run stock heads is the 305 Vortec head casting number 12552520. It is the same as the 350 Vortec but with smaller chambers.
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I am told that the best head for a 400 if you must run stock heads is the 305 Vortec head casting number 12552520. It is the same as the 350 Vortec but with smaller chambers.
I saw last night on fb about John. The world sure lost a great one. I'm going to miss his humor, advice, and perspective from another portion of the world. Rest in Peace Johnboy.
John Norton aka johnboy