3. Here is Short Block Charlie TIG-welding the crankpin on a new stroker crank. Tack welding the pin at both ends helps eliminate potential crankshaft shifting problems. This crank was checked for true before welding, and then retrued after welding to .001 inch or less of runout. Installing a Timken bearing in the left case (2003-later) also helps minimize crank problems when horsepower reaches roughly 100 and higher.