Engine Components

  • JE Stock Stroke Pistons JE Stock Stroke Pistons

    JE Stock Stroke Pistons

    This is a set of Stock stroke 3.400 JE Pistons for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The overwhelming choice of the world’s fastest Buick engine builders. These pistons are engineered to produce...

    $999.00
  • JE Stroker Pistons JE Stroker Pistons

    JE Stroker Pistons

    This is a set of Stock stroke 3.625 JE Pistons for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The overwhelming choice of the world’s fastest Buick engine builders. These pistons are engineered to produce...

    $1,199.00
  • Mahle Main Bearings

    Mahle Main Bearings

    This is a set of "Standard Mahle Uncoated Main Bearings" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.

    $125.00
  • Mini Starter

    Mini Starter

    This is a GN1Performance "MINI STARTER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Its a great high torque light wieght item (10lbs vs the stock at 20lbs) which comes complete with bolts also.

    $125.00
  • Oil Filter Adapter Oil Filter Adapter

    Oil Filter Adapter

    This is a "OIL FILTER ADAPTER" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Replace your old clogged or damaged Oil Filter Adapter with this new direct replacement adapter. No gaskets are included.

    $59.00
  • Oil Pump Pickup And Screen

    Oil Pump Pickup And Screen

    This is a "OIL PUMP PICK UP AND SCREEN" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This is a replacement for the factory Oil Pick and is extremely important to replace, especially when building a...

    $32.00
  • Oil Splash Guard Pan Oil Splash Guard Pan Oil Splash Guard Pan Oil Splash Guard Pan Oil Splash Guard Pan

    Oil Splash Guard Pan

    This is a "GN1Performance Aluminum Oil Splash Guard" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This pan is designed to take the place of a valley pan gasket when running Fel-Pro 1200. This pan blocks...

    $65.00
  • PAC Roller Cam Valve Spring Kit 1201

    PAC Roller Cam Valve Spring Kit 1201

    This is a "ROLLER CAMSHAFT PAC VALVE SPRING KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This is a Pac 1201 Spring set.  OD Outer: 1.260 ID Outer: 0.860 Damper: Yes ID Inner: 0.770 Installed Height (Valve...

    $399.00
  • PAC Roller Cam Valve Spring Kit 1201X

    PAC Roller Cam Valve Spring Kit 1201X

    This is a "ROLLER CAMSHAFT PAC VALVE SPRING KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This is a Pac 1201-X Spring set.  OD Outer: 1.260 ID Outer: 0.860 Damper: Yes ID Inner: 0.770 Installed Height...

    $479.00
  • Pair of Valve Cover Breather Grommets

    Pair of Valve Cover Breather Grommets

    This is a "Pair of Valve Cover Breather Grommets" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These baffled grommet have a 1/4in. groove for aluminum valve covers. Contains foam insert to prevent leakage.

    $9.99
  • Ported Heads Cast Iron Heads Ported Heads Cast Iron Heads Ported Heads Cast Iron Heads Ported Heads Cast Iron Heads Ported Heads Cast Iron Heads

    Ported Heads Cast Iron Heads

    This is a GN1Performance "PORTED CAST IRON HEADS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The heads feature a 170 stainless valves and exhaust are 160. They have new keepers, EGR...

  • Powermaster 200amp Alternator Powermaster 200amp Alternator Powermaster 200amp Alternator Powermaster 200amp Alternator

    Powermaster 200amp Alternator

    This is a "Powermaster 200 AMP Alternator" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This high output alternator is a direct fit and puts out 200amps. It features a heavy duty bearing, excellent idle output, and...

    $360.00
  • Precision Oil Filter Relocation Kit

    Precision Oil Filter Relocation Kit

    This is a "PRECISION OIL FILTER RELOCATION KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This kit includes a new WIX oil filter, the adapter housing, the filter relocation housing with mounting bracket, all the...

    $325.00
  • Scorpion Roller Rockers Scorpion Roller Rockers Scorpion Roller Rockers Scorpion Roller Rockers Scorpion Roller Rockers

    Scorpion Roller Rockers

    This is a set of"SCORPION STUD MOUNTED ROLLER ROCKERS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These are designed for the 8 bolt or 14 bolt Champion racing heads.

    $485.00
  • Stainless Steel Heater Lines Stainless Steel Heater Lines Stainless Steel Heater Lines Stainless Steel Heater Lines Stainless Steel Heater Lines

    Stainless Steel Heater Lines

    This is a "STAINLESS STEEL HEATER CORE LINE" replacement for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6, which mounts up to the passenger side of the intake manifold. This is a perfect upgrade for those of...

    $119.00
  • Stock CNC Ported Intake Manifold Stock CNC Ported Intake Manifold Stock CNC Ported Intake Manifold Stock CNC Ported Intake Manifold Stock CNC Ported Intake Manifold

    Stock CNC Ported Intake Manifold

    This is a "CNC PORTED STOCK INTAKE MANIFOLD" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.This item is sold on a exchange basis ONLY. Customer must ship us their old manifold and if the core is in proper...

    $999.00
  • THREAD SEALER ARP

    THREAD SEALER ARP

    ARP Thread sealer. These PTFE based sealers have a rust and corrosion inhibitor. In aluminum, steel, stainless steel, and plastic, they deliver a flexible, leakproof seal against coolants, water, gasoline, natural gas, and LPG. These sealers will be...

    $16.00
  • Valve Cover Breathers Billet Aluminum Valve Cover Breathers Billet Aluminum Valve Cover Breathers Billet Aluminum Valve Cover Breathers Billet Aluminum Valve Cover Breathers Billet Aluminum

    Valve Cover Breathers Billet Aluminum

    This is a set of "Gn1Performance BILLET ALUMINUM VALVE COVER BREATHERS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These billet aluminum breathers come in either polished aluminum or a satin black wrinkle finish...

    $59.00
  • Valve Springs Valve Springs

    Valve Springs

    This is a set of "Isky Valve Springs" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These valve springs are great for factory flat tappet replacement or new flat tappet camshaft installation. The springs are 110lbs...

    $199.00