This neat little fixture was designed to match-weigh any set of Small Block Chevy large journal connecting rods. This is a great way to do the job yourself without the expense of a scale and rod fixture. What our tool actually does is compare two rods at a time to show which one is heavier. You then remove material from all rods except the lightest, until all rods are of equal weight. Our Sportsman Connecting Rod Balancer is designed to hold rods from either the big or small end, so you can balance both rotating and reciprocating weights.