I'm in the process of building a 348 Chevy stroker [W-series early big-block] engine with a 4-inch stroke crankshaft, 6.135-inch [center-to-center] H-beam stroker rods, a 0.030-inch overbore, and ...

Mark photographed the process, step by step, to share his idea with other 348/409 Chevy owners ... why the oxide layer must be removed prior to welding, using a stainless steel wire brush.