6231 ARC Billet Rod Briggs Intek 305 4.335X1.250x.4908 Billet Rod ARC Pro Series. Briggs Intek 305 Model 20 long rod. This rod was designed to work with an aftermarket piston cut to approximately .565" compression height and uses a .490" wrist pin... kr1.152,39 Add to Cart The item has been added