The LS6/Z06 Corvette with the 405hp camshaft is an excellent choice for a cam upgrade where on mosy LS application where you desire a stock style camshaft with excellent idle, great power, and a broad torque curve. Very popular upgrade for 5.3L truck applications!
Please note that this cam has approximately a 0.050" smaller base circle than a stock LS1 camshaft. This smaller base circle will require longer pushrods for applications with stock length valves and no milling for the head surface. It is imperative that you check your pushrod length when purchasing this cam. The 2002-04 LS6/ Z06 cylinder heads use a longer valve to make-up this difference!
Basically to convert between AN (commonly used as the measurement for automotive fittings and hoses) sizing and Inches (easiest to measure, and for right tool sizing) you take the AN, or –AN size and divide it by 16, this will give you the size in inches. Thus we have: