Valve Seat Correction Angles
After grinding seat, to lower seat, use a 30-degree stone to remove stock from top of valve seat on all valves. To raise seat, use a 75-degree stone to remove stock from bottom of seat on all valves.
After grinding seat, to lower seat, use a 30-degree stone to remove stock from top of valve seat on all valves. To raise seat, use a 75-degree stone to remove stock from bottom of seat on all valves.