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**Accelo** · 04-12-2022, 01:34 PM

There are many methods of measuring deck clearance. Some account for piston rock and a bunch of other variables. All you need is an approximation which your calipers provided. The feeler gauge and straight edge is also a good method without investing in tools you may never need again.
The heads are ordered so you have already made your decision. Not the time to look back. Confirming the timing mark is a good idea. No tools needed. You could use the old head and set a nut on top the piston as a stop. You can look up how it's done on YouTube. Sometimes the balancers well get mixed with an incorrect pointer. Some balancers are marked TDC in line with the shaft key and others are offset. No need to worry about any ridge as I doubt you are going to change out the rings. Nor would I recommend it. You mentioned little to no ridge and the motor has obvious been rebuild as it was bored .020 over. If it have many miles on it the pistons would not have cleaned up that nicely.

My though it you have done a great job for your first time.

04-12-2022, 01:34 PM	#57
Accelo Senior Member Join Date: Mar 2015 Location: washington Posts: 2,358	Re: Valve seals There are many methods of measuring deck clearance. Some account for piston rock and a bunch of other variables. All you need is an approximation which your calipers provided. The feeler gauge and straight edge is also a good method without investing in tools you may never need again. The heads are ordered so you have already made your decision. Not the time to look back. Confirming the timing mark is a good idea. No tools needed. You could use the old head and set a nut on top the piston as a stop. You can look up how it's done on YouTube. Sometimes the balancers well get mixed with an incorrect pointer. Some balancers are marked TDC in line with the shaft key and others are offset. No need to worry about any ridge as I doubt you are going to change out the rings. Nor would I recommend it. You mentioned little to no ridge and the motor has obvious been rebuild as it was bored .020 over. If it have many miles on it the pistons would not have cleaned up that nicely. My though it you have done a great job for your first time.