Setting valve lash doesn’t have to be complicated. We use the ICEO method on every engine we build, and it works every time. ICEO = Intake Closing, Exhaust Opening * Intake Closing → Adjust the Exhaust Valve * Exhaust Opening → Adjust the Intake Valve This method makes sure the lifter is on the base circle of the cam when you set lash—no guessing about crank position or firing order. We get a lot of calls asking how to properly set valve lash, so here’s a quick look at exactly how we do it at Kill Devil Diesel. Want the full deep dive? Check out our YouTube channel for a detailed installation video where we walk through the entire process. The Devil’s in the Details.