This is a set of "Severe Duty Pro Flo Intake and Exhaust Valves" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These Valves are for Factory Iron production heads only.
Intake, Stainless Steel, 4.730 in. Length, 1...
