How to build an exhaust crossover pipe for a 348-409 Chevy W-motor. Features. Events. How-To. Merchandise. Gear Guide. Magazine. Join Newsletter. Fabricating an Exhaust Crossover Pipe.

Note how we've pieced these segments together to form exhaust pipes back to the mufflers. See All 15 Photos The first order of business is tack-welding these pipe segments together.

Automotive suppliers regularly use this process to weld exhaust manifolds. In practice, PMC enables the use of considerably higher welding speeds, thus increasing productivity. Higher, Further – ...