Complete 1987 Buick Grand National DriveTrain Package

Here's a Great Starting Point!

As our valued customer is upgrading to our 650HP Diamond Package, we are offering this complete drivetrain and engine package for a Buick Grand National. This setup has been well-maintained and delivers excellent performance with proven dyno results.

Key highlights include:

• Healthy Engine: Excellent oil pressure and solid vitals.  Complete Drivetrain: Fully operational components, including the engine, transmission, turbo system, and fuel system.\n- Turnkey Setup: Everything you need to hit the road or strip, starting from scratch.

Please Note:

This package is sold as-is with no warranties implied or expressed by Watts Performance.

If you’re looking for a reliable and affordable way to start your build, this is the deal for you! Don’t miss out—contact us today for more details or to secure this setup! Sales@wattsperformance.com

 

Complete Buick Grand National Drivetrain & Engine Package

Included in the Deal

The following components are included in the drivetrain  package. The engine runs well, comes with a dyno slip, and all listed parts are functional.

Engine and Internal Components

Restored Engine Block

Crankshaft: Balanced and checked for durability. Belived to have stock crank, rods, and pistons. No supporting data. 

Main Stud Kit (GN/T-Type).

Rod Bolts (Buick V6).

Cam Bearings (Clevite).

Rod Bearings (Federal Mogul H-Series).

Valve Springs (100LB Performance).

Flat Tappet Camshaft (Comp Cam 212/212).

Flat Tappet Lifters (Comp Cams).

Double Roller Timing Chain (.05 Undersized).

Oil Pan (Stock GN).

Rear Main Seal.

Fuel System

Walbro 340 Fuel Pump with Hotwire Kit.

60LB High-Impedance Fuel Injectors.

Billet Adjustable Fuel Pressure Regulator.

Fuel Pressure Rail Gauge.

Complete Fuel Rail: Includes all fittings and connections.

Induction System

Precision Turbo PTP 5558 Turbocharger with stock Oil Feed Line , and Oil Return Line(Turbo). 

Turbo Shield (Stock)

3" Cold Air Pipe.

LS MAF Sensor.

MAF Translator.

Throttle Body (Stock GN).

Plenum (Stock GN or Aftermarket).

Alky Injection Kit.

Complete Intake Manifold: Fully functional and ready for installation.

Exhaust System

Stock Headers (GN).

3" DownPipe

 

Cooling System

Alradco Aluminum Radiator (Powder Coated).

Dual Radiator Fans.

160-Degree Thermostat with Billet Housing.

 

Transmission & Torque Converter

Richard Clark Built Transmission (Good Running Condition).

Torque Converter (Orange Stripe 2800 Stall).

Electrical System

Complete Wire Harness Stock

Power Bastards 240-Amp High-Output Alternator.

Stock Ignition Coil Pack.

Spark Plug Wires

Sensors (Complete Set): Includes MAF, IAT, TPS, Knock Sensor, Oil Pressure Sensor, and more.

Air Conditioning System

Compressor 

A/C Lines.

 

Dash and Interior Electronics

Aftermarket Dash (Analog).

Translator and Upgraded MAF.

Additional Components

RJC Power Plate.

RJC PCV Valve.

Turbotweak ECM Chip.

Not Included

TV Cable: Controls the transmission throttle valve for proper shifting.

Throttle Bracket: Holds the throttle cable securely in place.

TV Cable Bracket: Mounts the TV cable and ensures proper alignment with the throttle.

Grand National Alternator/A/C Compressor "Y" Bracket (GM Part #25525203): Essential for mounting the alternator and A/C compressor.