This cutaway comparison of a standard 3.8-liter block (left) and a heavy-duty 3.8-liter block (part No. 25500003) reveal thicker main webs, an additional lifter valley rib and heavier pan rails. The H ...

Time is catching up with Buick's seemingly ageless V6 engine. The venerable workhorse, which set several industry benchmarks for quality, reliability, durability, performance, fuel economy and ...

About once a generation, Buick awakens, staggers out of its crypt, and produces a kick-butt performance package that attracts living, breathing, flesh-and-blood hot rodders back into its showrooms.

Jack Merkel Performance Engines is serious about Turbo Buick powerplants. "I saw that there was no one filling the engine demands for guys with 10- and 11-second cars," says Merkel. "I spent a lot of ...

The ancestor of the Buick V6 is the Buick 215 V8, an innovative lightweight V8 with aluminum block and heads that debuted in 1961. This engine turned into iron and gained much displacement with GM ...

Once upon a time, in a decade long ago, Buick built a kick-ass little turbocharged V6 engine and dropped it into the handsome rear-wheel drive Regal. Rated at (wink, wink) 245 horsepower (in 1987), ...