This is a GN1Performance "BILLET CNC ALUMINUM CRANK PULLEY WITH WHOLES" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This pulley is CNC machined with a high polished finish. Not only do these pulleys look very nice, but they are also extremely light weight!
MADE IN U.S.A!
Please note, this pulley will not accept the stock intercooler fan. There are no tapped holes on the crank pulley to utilize the SLIC fan.