Posted by rich4 on November 09, 2008 at 22:26:24 from (74.60.110.90):
In Reply to: 301C Engine posted by 460 Man on November 09, 2008 at 11:01:12:
Check valve settings as said. If you cannot get the correct valve clearances, then shorter push rods. Good you did not torque it down yet. One thing to do is to put a small amount of non sticky putty on top of the pistons and turn it over by crank if possible and see what the minimum clearances are between the piston/head/valves. The cam also has to be in the right timing. .120 is a lot of shaving in my mind, but what do I know. There should be specs about minimum piston to valve clearance you need to maintain. Otherwise at high rpm they collide.
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