Speedmaster heads revisited.
Ok guys this head is winding down as I’m about ready to tube and jump on the other head. If there are any questions please post them up BUT please read the whole post as it may have already been answered. (This is why I try to stay focused and not post about my uncle Ted) I’ll give this a quick dip in my kerosene tank and wait till the other one is done then I with lap some valves lightly, and get them cleaned up for a vacuum test then spring setup together. Some reminders are if you tube don’t forget to drill your 4 total oiling holes for both heads and take a small 1/4-3/8 sanding roll and remove the burrs in the bolt hole. I always take a scribe and put it down in the drill oil holes to break off any burrs. Next if you open up the spark plug holes like in these pictures install two valve just in case the grinder get away from you. You are just gaining a little access to the plug and doing some radius work. You don’t have to go crazy. Next try to remove the factory burr around the valves of course with valves in.
Ok guys this head is winding down as I’m about ready to tube and jump on the other head. If there are any questions please post them up BUT please read the whole post as it may have already been answered. (This is why I try to stay focused and not post about my uncle Ted) I’ll give this a quick dip in my kerosene tank and wait till the other one is done then I with lap some valves lightly, and get them cleaned up for a vacuum test then spring setup together. Some reminders are if you tube don’t forget to drill your 4 total oiling holes for both heads and take a small 1/4-3/8 sanding roll and remove the burrs in the bolt hole. I always take a scribe and put it down in the drill oil holes to break off any burrs. Next if you open up the spark plug holes like in these pictures install two valve just in case the grinder get away from you. You are just gaining a little access to the plug and doing some radius work. You don’t have to go crazy. Next try to remove the factory burr around the valves of course with valves in.