The Silvertop con-rods are quite solidly constructed and with bolts weigh in at 506 grams each (without the need of bearings). The Blacktop was equipped with thinner, lighter and weaker rods that are 485 grams Every single. Both are conveniently interchangeable and use the same fasteners for the leading bearing https://bookmarkize.com/story18525011/the-2-minute-rule-for-4age-20v-for-sale