I wanted to make a general connecting rod weight thread, so we'd better understand and could compare the different rod weights and their effect to engine's dynamics. I finally got some stock rods (Z6 and B20) removed from pistons, and had previously weighted few FJT rods I've had in my hands, so here we go: D16Z6 rod with stock bolts+nuts: 434 grams PR4 LS/B20 rod with ARP 8mm bolts+nuts: 497 grams FJT std-length H-beam with 3/8" ARP2000: 518 grams FJT 138.65mm long I-beam with 3/8" ARP2000: 540 grams Probe I-beam "Ultralight", 9mm ARP8740: 500 grams (thanks remoer!) Speed-O-Motive Pro I-beam, 9mm ARP8740: 498 grams (appears to be identical to Probe) Eagle ESP H-beam, 3/8" ARP2000 : 530 grams ARP2000 3/8" bolts are 27 grams each. ARP8740 9mm bolts are 21 grams each. If you can weight other rods, please post here! I'd be very interested about real weight of Crower MaxiLight. But post only numbers you've personally measured, NOT misinformation you read online or "have heard". Pictures are very welcome.