I am rebuilding a Buick 3.8L for my 91 Buick LeSabre. I went .030 over and I am working the heads. I had new guides installed, new valves, which a had back cut 20 degrees and I'm working the head ports just to see if it helps. The Question I have is the intake part of the head where the air will go past the guide in the pocket: The machine work is even on all 3 ports but my theory is if it can swirl past the guide it will run better. I think if it can swirl towards the center it will work better. But the design of the head is the same on each port. I can grind it to make that work but if it is better to open up both sides of the guides than I will do that. :?:
91 3.8L Heads
- Thread starter ronbz455
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I got the seats and valves hitting like I want them but I'm trying to find a good way to measure stem height without the correct tool. I know they are too high cause I compared them to an untouched head with a level square to the valve cover surface but this is not accurate. and the book does not give the height. Just the spring height. Anyone know a good way to check this without the tool? I have to be close because my rockers are non adjustable.
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