Bored .040 over and running grade C gaskets? I thought you had to use the block over-bored gaskets when you bore the cylinders.
Max piston protusion
- Thread starter sweetdiesel
- Start date
0.010 to 0.015 above bore as I understood it . I used B gaskets on mine .
0.011 . I hope I measued right .
Thought about going with c's to be safe but used B's and prayed I measured right .
LLY stock cut lip only pistons with a 0.020 bore in my motor .
Gaskets are the only clearance from heads and valves .
Crazy to think about . Tight tolerances in all the motors .
Screw this up and it is devistating .
I guess I did it right ..... still running .
0.011 . I hope I measued right .
Thought about going with c's to be safe but used B's and prayed I measured right .
LLY stock cut lip only pistons with a 0.020 bore in my motor .
Gaskets are the only clearance from heads and valves .
Crazy to think about . Tight tolerances in all the motors .
Screw this up and it is devistating .
I guess I did it right ..... still running .
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What I am about to type is not my idea nor my theory only one I found from another member and below is how I understand it which may differ from its' original intent.
Due to a poor design on the valvetrain bridges, there can be up to .050 of movement. So that would take someone who set there valve clearance at say .100 and turn it into .050.
I used the billet one piece rocker bridges (from DPR). I wonder if these help with this since the rocker arm tip is not riding on the insert? I did not look at these that closely before we put the valve covers on.