This is a head gasket manufactured by Remflex.  This product is ideal for the 1986-'87 Buick V6.  It is sold as a set.  The gasket is made with graphite and is effective up to 3,000 degrees Farenheight.  They will rebound 30% when fully tightened.  This particular product has a square port style and the dimensions are 1.406 inches in height, 1.125 inches in width, and 0.125 inches in thickness.  



Other products you might be interested in include: #KPP7701 Replacement Donut Gasket for Downpipe, #KPP7176 ZDDPlus 4-Ounce Bottle, #KPP7099 Stock Turbo Gasket Kit, #KPP8055 1986-'87 Buick Turbo to Down Pipe Gasket.