The Silvertop con-rods are quite solidly constructed and with bolts weigh in at 506 grams Each individual (with no bearings). The Blacktop was equipped with thinner, lighter and weaker rods which can be 485 grams each. The two are readily interchangeable and use precisely the same fasteners for the key https://socialmediaentry.com/story3896724/the-ultimate-guide-to-toyota-4a-ge