Serpentine Belt Measuring
Rob Kinnan
Brand Manager, Mustang Monthly
October 12, 2015
Photos By: Jason Lewis

The last time we visited the Large Marge ’73 Mustang coupe project, you saw the Holley cylinder heads getting new guides and seals from Jim Grubbs Motorsports, followed with some tips on installing then onto the short-block. We then followed that up with the installation of our trick Weiand mini blower that should generate around 8-10 pounds of boost when we bury the throttle pedal in ol’ Marge. But before we drop this blown ’93 Cobra motor into Marge’s engine bay, we needed to figure out the accessory mounting and serpentine belt length.

Normally, you can just order a ’93 Mustang belt from the parts store, but we changed the accessory mounting just a tad, meaning that a stock-length belt will no longer fit. So we put together this quick tech tip on how to properly measure belt length to avoid repeated (and frustrating) trips to the parts store in search of the correct belt. All you need is a piece of string and a measuring tape to get the right length belt, as seen here.

Keep watching, as we have a lot of parts stacked up on the bench and will be installing them soon, with more cool videos to follow.