Dyno link: here
Installed June 2017 : Alky pump, aluminum rims with Mickey Thompson ET street R tires New: gas tank, fuel pump, spark plugs, water pump, fuel filter, spark plugs, intake manifold gasket, valve cover gaskets,
Motor build with invoice in pictures from Grand National Turbo Tech shop in Oakland Park,Florida:-Balanced complete steel crank assembly-New cam bearings deck block-Tranny: Rebuilt complete 2004R tranny with heavy duty parts-Turbo: Precision PT 67 GTQ with new high pressure actuator and jet hot coated exhaust housing-Headers: TA stainless -Heads: Champion fully ported steel heads-Cam: Comp cam hyd. roller camshaft kit (220-224) with roll master billet timing chain-Rockers: T&D 1.55 roller rocker arms-Crank kit: 3400 stroke forged steel crank, steel rods, forged 030 pistons-Diamond turbo rings-Bearing: high performance king rod and main bearings- Timing cover: New TA cover

Used
“1987 Grand National with $20,000 invested in the motor dynoed at 504hp to wheels driver quality car needs some body work and paint.”
Year: 1987 VIN (Vehicle Identification Number): 1G4GJ1172HP463477
Mileage: 113,000 Transmission: Automatic
Make: Buick Body Type: Coupe
Model: Grand National Vehicle Title: Clear
Engine: 3.8L V6 Turbo Options: Cassette Player
Drive Type: RWD Power Options: Air Conditioning, Power Windows, Power Seats
Fuel Type: Gasoline Exterior Color: Black
For Sale By: Private Seller Interior Color: Gray
Drive Side: Left-hand drive Number of Cylinders: 6