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08-31-2009 07:34 PM #1
219 heads
So I pulled a valve cover on my 454 and found i have 3917219 heads. I have never been inside this motor, so a casting number is all i have. does anyone have any info on these heads? They have truck cast into the head so I assume they are big chamber truck heads. Is there any performance potential here or should i just find a better casting number. I need to stick with a stock casting or I would just go aluminum.
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