[Cobra #3170]

blykins is right, perfectly normal condition for Aluminum blocks and heads. My cold valve clearance is .008 n and .008 x when warmed up it is .020 n and
.020 x. The only issue I have had was that I needed a chain tensioner for the cam drive because it was so slack and noisy when cold. A good reason for a nice easy warm up with an aluminum engine.
A belt cam drive will solve this problem, but it is very difficult to package with a dry sump pump.