piston/ valve clearance

[workingdan]

Changing to champion aluminum heads and was wondering with the bigger valves on the new heads, should I check for piston to valve clearance? never checked when I put the motor together the first time but would hate to have an issue now.

 

[Nick Micale]

How could your question be answered without at least knowing cam lift and rocker ratio?

 

[bison]

The intake valves are .25" to.30" wider and very close to the stock location. If you have less than .600 lift net i wouldnt be too worried about it. The only way to know the exact clearance is to check it.

 

[workingdan]

Intake 210 @ .050 .516 lift
Exhaust 215 @ .050 .516 lift
110 L/S (installs at 110)
with 1.55 rockers

 

[workingdan]

So has anyone had to fly cut pistons with a mild cam .516 lift with champion aluminum heads?

 

[norbs]

So has anyone had to fly cut pistons with a mild cam .516 lift with champion aluminum heads?

You will be fine If I can run 600 lift stage II heads....without cutting I would say your safe with that cam......