This is a Comp Cams "ROLLER CAMSHAFT " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This includes the Comp Roller Camshaft only. Depending on your build, make the decision as to what Camshaft duration you would like below.
Please keep in mind that even though these are Comp Camshafts, they are custom grinds for Gn1 Performance. These are not the same as an off the shelf cam sold by other vendors.