Need help NON mopar 1967 Pontiac Lemans 326

No one ever put a chev in a yak?

What is a yak? I think some of the Canadia ponchos had Chev engines........

From Wiki.........

"In particular, Canadian "full size" Pontiacs were actually closely related to Chevrolets, making use of the economical Chevrolet chassis and drivetrain, though with the American Pontiac-styled exterior body panels (They weren't the same as U.S. Pontiac panels since they had to fit the shorter-wheelbase 119-inch Chevrolet "X" frame. U.S. Pontiacs used a full perimeter frame.) and interior instrument panels. As Chevrolets under the skin, Canadian Pontiacs including the Parisienne used the same engines and transmissions as full-size Chevys, including the 230 and 250 cubic inch 6 cylinder and 283, 307, 327, 350, 396, 400, 409, 427 and 454 cu inch V8s. These engines were mated to the same transmissions as Chevrolet, including 3 and 4 speed manual and the 2 speed Powerglide and later the three-speed Turbo Hydra-Matic automatic transmissions."