I'm getting a set of heads for my 5.3 that have been "cleaned up" a little, and milled .020" with a 3 angle valve job. I plan to mill another .010, or .020, and use the thin head gaskets. I'm not sure the flow numbers, but how would a 212/218, or a 216/220 sound for a daily driven Z-71? I'm fixing to do a shift kit, and 2500 rpm converter. I think I'll stick with the 112 lsa to keep as much low end as possible, or should I go with a 114? I also like the Vinci 062, and can get a custom grind from camotion too. Thanks for the advice.

 

Id go with the 216/220 and would use stock gm gaskets quench is important if you want higher compression mill the heads more

 

white - did you re-use the stock valves? reason asking i'm getting 02sierra's heads (thx 02) and i'm going to go ahead and cut the seats and put 2" intakes in them.

 

Don't know, I'm getting the heads from someone else.