Technically speaking, the rarest Buick engine ever made might be the Buick ... Upgrades That Make The GNX's 3.8-Liter Turbo V6 Unique A ceramic Garrett AiResearch T-3 turbocharger Upgraded Garrett ...
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.
The Buick Grand National has long held a special ... This restomod, named Invadr, packs a twin-turbo 3.8-liter V6 built by Duttweiler Performance, generating a mind-bending 1,246 horsepower ...