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I Have Three Sets Of Chevy Heads. The Casting #s Are :
3998993 (1.95/1.5 75cc Not Mexico ) , 354434 / 376450 (1.72/1.5 60cc) &3795896 (1.72/1.5 60cc Power Pak 283/327 250 Hp). I Am Needing Help Deciding Which Set Will Give Me The Best Horsepower. I Am Planning To Build A 350 4 Bolt Main. Please Help!!
 

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Lost in the 60's
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Welcome to the Hotrodders Bulletin Board.....lots of opinions, advice , and information here...............so jump on in and enjoy the site. :welcome: This is the Introduction forum.....best to ask your question in the Engine forum.
 
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