Okay I was reading and talking to my cuzin about the plastic intake problems on my Series II. Does anyone make an iron or anyother metal material verison of that intake. I know and checked intense makes one for the L67'* or L32'* but no L36'*... Can anyone help me. Rogue are the planing on coming out with one for the L36'*? Please help. **Mine hasn't blown yet** And they wonder why people don't like GM products. What idots. Like the plastic timing chain in my Olds Delta 88 with Series I 3800. Idots... Some help thanks a lot Chris.
the Series III cars have a alum upper intake, as apposed to the Series II that has the plastic....you need the aluminum L26 upper intake and a TB adapter...with these 2 parts, you can do the swap. Your channenge will be finding the TB adapter
The plastic upper'* for the 2000+ L36'* I thought have been alledgedly improved. I'm thinking GM re-designed the area where the EGR stove pipe penetrates the upper intake. From what I've heard the aftermarket Dorman Upper Intake Manifolds are good as replacement manifolds.