The Silvertop con-rods are extremely solidly built and with bolts weigh in at 506 grams each (without bearings). The Blacktop was equipped with thinner, lighter and weaker rods that happen to be 485 grams Each and every. Both are conveniently interchangeable and use precisely the same fasteners for the key https://blacktop-4age72603.alltdesign.com/the-smart-trick-of-toyota-4a-ge-that-nobody-is-discussing-50940893