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Thread: 243 heads w dual valve springs

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  1. 03-08-2012 01:00 AM #1
    FL_Cracker
    FL_Cracker is offline Member
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  2. 03-08-2012 02:06 PM #2
    kbomhower
    kbomhower is offline Senior Member
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    what is the difference in a 243 vs 317 head??? im looking to upgrade mine jw what are better for a 6.0??
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  3. 03-09-2012 06:47 PM #3
    FL_Cracker
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    Quote Originally Posted by kbomhower View Post
    what is the difference in a 243 vs 317 head??? im looking to upgrade mine jw what are better for a 6.0??
    Higher compression. Good for a few extra hp or great starting point for a high hp build. I had these on my 6.0 made a big diff in performance and my truck sounded better. Im going supercharged so these are no good for me anymore.
    Last edited by FL_Cracker; 03-09-2012 at 06:52 PM.
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  4. 03-09-2012 02:36 AM #4
    FL_Cracker
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    bump!! $600 and ill pay half shipping.
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