Quote:

---

does anyone have a procedure for measuring clearance in the assembled block.?
I have done valve to piston checks at10* btdc and 10* atdc
what is the protocol to check. some of the cams im seeing start valve openings as 24*btdc
I want to make sure I have clearance.
should I pick a cam then use its specs to check clearences in my engine as it is now ...to make sure it wont have valve to piston issues?
or check valve to piston contact at say 24* 14* 7* and at tdc.. then do the same after tcd..
and compare it to those same valve events on the cam?
for instance find max lift of new cam at crankshaft degrees then open my valves at that point. then open the valve till it hits the piston and measure the difference from max lobe lift..to find the clearance/margin/value.?

---