This scoop features heavy duty .080 aluminum construction providing durability and strength. Each scoop is welded inside and out to prevent cracking. Then the scoop is polished to a show quality shine that is just incredible. It also features a raised mounting flange providing plenty of clearance for any carburetor. Flame Arrestor 690-573001A is recommended for use with this scoop. Fits carburetors with 5 1/8 neck. Please provide center to center measurements when ordering. 12" Wide at opening. 6-1/2" tall in the middle, 4-1/2" tall on the sides. 28" Long