Factory GM Buick aluminum flywheel 455 ONLY.Made by Schiefer for GM,excellent condition,weight 13/14 pounds.Necessary to run 4-5-6 spd behind Buick 455. $300 plus ship,NoPayPal. Thanks flatheadjohn47Texas979-595-7324 cell. This is the flywheel that came in 455 Buick Gran Sport with 455 motor.