Quote:
Originally posted by Henry Schmidt
Be careful, "E" pistons have very shallow valve pockets. If the cam you choose is too aggressive the valve to piston clearance will be inadequate or non existent.
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Agreed. To clarify, using an 'S' cam with E pistons can be done. However, sometimes it will work, and sometimes it won't (depending upon what machining you have had done to your engine parts). The piston to valve check is vital here.
If you do encounter a problem, simply enlarge the pockets in the pistons (no less than 5mm of material from the back to front of the piston).
-Wayne