A meticulously restored 1965 Pontiac GTO convertible, complete with a powerful Tri-Power 389 cubic inch (ci) V-8 engine, is up for grabs. Known as “The Tiger” and “The Goat,” this GTO ...

20,547 customers wanted the Tri-Power engine and paid $115 more when they ordered the car, eventually getting a powertrain rated at 360 horsepower. The coupe was the most affordable GTO in 1965 ...

While sales exceeded 75,000 units in 1965 and reached nearly 97,000 ... Arguably the most desirable engine in a 1964-1966 GTO, the Tri-Power 389 is rarer than the four-barrel variant.