This is topic what ar the specs on 351w heads in forum Tech Talk at Northern California Ford Owners  .


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Posted by 89hatchback_lx (Member # 587) on :
 
was just wondering how the 351w heads compare to the gt40 heads
does any one know the specs
how much better do they flow or the valve size

thanks
 

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Posted by Milesblown03 (Member # 27) on :
 
depends on what 351 head...early, late model... alot of them sucked ass... some are ok. i had some 70 351w heads on my cougar... intake side was ok for a stock head... the ex side sucked ass still, but i opened up the ex a little, so it worked ok
 

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