You use one or the other, not both. Using both will not let any lubrication on the valve stem and will cause valve failure and possibly catastrophic engine failure.


Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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