valve lash

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Lash would be zero, pre-load how ever is............do you have an adjustable rocker set up, or adjustable push rods? I would start with 1/2 to 3/4 turn after zero lash, experiment with what the engine likes, maybe tighter, maybe looser.

If you don't have adjustable valve train, bolt the rockers down and go; maybe shims under the rocker shafts and pedestals, again experiment with what the engine likes.
 
Lash would be zero, pre-load how ever is............do you have an adjustable rocker set up, or adjustable push rods? I would start with 1/2 to 3/4 turn after zero lash, experiment with what the engine likes, maybe tighter, maybe looser.

If you don't have adjustable valve train, bolt the rockers down and go; maybe shims under the rocker shafts and pedestals, again experiment with what the engine likes.

with adjustable rockers, go zero lash, like said above, go 1/2 to 3/4 turn more. Make sure your rockers are only have about 3-4 threads out toward the rod side. If you have more you may need longer push rods.
 
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