Plenty of parts required custom fabrication and hundreds of man-hours, such as intake runners and a coolant system, while the exhaust system was tailored with custom headers and boom tubes.

GM’s third production overhead-valve V-8 engine in five years, the Buick “nailhead” was the warmup act for the small-block Chevy, and a classic in its own right.

Built by Hot Rod Fabrication in Auburn, Washington ... chrome air cleaner and rocker covers. A set of coated headers with ...