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It was during this time period that the company released the '87 GNX 3.8 V6 Turbo — a car that Buick made in partnership with Michigan-based Automobile Specialty Company and McLaren Engines.

Because of its extensive mods, that turbocharger, and the sheer power ... all-iron 3.8-liter Buick V6. The engine itself is heralded as one of the most durable and long-lasting V6 engines ever ...

Buick still makes the car available to automotive ... Upgrades That Make The GNX's 3.8-Liter Turbo V6 Unique A ceramic Garrett AiResearch T-3 turbocharger Upgraded Garrett intercooler with ceramic ...

The Buick Grand National has long held a special ... This restomod, named Invadr, packs a twin-turbo 3.8-liter V6 built by ...