Steve Best
Well-Known Member
If you shim the cylinder higher with gaskets you will have bring the head down by a similar amount by 1) cutting the top of the cylinder, 2) from the head gasket (limited) and 3) removing metal from the head (limited). I cut the ports to what I want making them very level with each other. A very small dremel with a cutter will do this quick and easily. Slips and gouges are totally your responsibility.
Seriously, if I were you (and I have been!) I would try the cylinder as it is (widened ports and hopefully gasket match), and pull it off again (15 minutes work) and try raising the ports 0.020". Run it again. Keep doing this until you get the power you want.
What if you go too far? I've gone too far many times in life. That is the cost of learning. In this case about $30.
There are 2 ways of getting around cutting too much.
1) have an extra piston with 0.020" cut off the edge at the port:
or 2) do shim the cylinder up and down with an extra base gasket and use the teflon tape instead of a head gasket.
Either will tell you something before you cut metal, 0.020" at a time.
Usually we just raise the exhaust port so the piston trick is best for this.
If you want to try raising all the ports, use the base gasket.
You can sand material off the top of the cylinder, just as you would a head, if you want to go the basegasket route.
Good luck!
Seriously, if I were you (and I have been!) I would try the cylinder as it is (widened ports and hopefully gasket match), and pull it off again (15 minutes work) and try raising the ports 0.020". Run it again. Keep doing this until you get the power you want.
What if you go too far? I've gone too far many times in life. That is the cost of learning. In this case about $30.
There are 2 ways of getting around cutting too much.
1) have an extra piston with 0.020" cut off the edge at the port:
or 2) do shim the cylinder up and down with an extra base gasket and use the teflon tape instead of a head gasket.
Either will tell you something before you cut metal, 0.020" at a time.
Usually we just raise the exhaust port so the piston trick is best for this.
If you want to try raising all the ports, use the base gasket.
You can sand material off the top of the cylinder, just as you would a head, if you want to go the basegasket route.
Good luck!