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david christy · 05-27-2013, 08:09 PM

for heads i would stay with the stockers just the basics 3 angle,if you really want to get aggressive have them fitted with 2.02 but that all depends on what cam you run. The bottom ends being 2 bolt mains were a weak point on spinning it up or anything with boost. I have converted mine to 4 and keep boost at 22-25 with the stock cast cranks with no problems now.

05-27-2013, 08:09 PM	#8
david christy Junior Member Join Date: Jan 2011 Posts: 22 Likes: 0 Liked 0 Times in 0 Posts	Re: Chevy 4.3 V/6 education needed for heads i would stay with the stockers just the basics 3 angle,if you really want to get aggressive have them fitted with 2.02 but that all depends on what cam you run. The bottom ends being 2 bolt mains were a weak point on spinning it up or anything with boost. I have converted mine to 4 and keep boost at 22-25 with the stock cast cranks with no problems now.