Buick LeSabre Custom 401 Nailhead
The Buick LeSabre of 1959-1961 represents one of the most dramatic styling periods in Buick history, combining the era's signature jet-age fins and chrome excess with Buick's renowned engineering and the legendary Nailhead V8 engine. The Custom trim level with the optional 401 cubic inch Nailhead offered a compelling combination of luxury appointments and genuine performance.
The Nailhead V8 earned its nickname from the unusually small valve sizes relative to the engine's displacement. The 401 cubic inch version produced 325 horsepower and an impressive 410 lb-ft of torque — characteristics that made it an exceptional highway cruiser and, despite its nickname suggesting otherwise, a surprisingly effective performer. The engine's massive low-end torque compensated for the Dynaflow automatic's somewhat leisurely shifting behavior.
The 1959 LeSabre featured the most exaggerated styling of the trio, with prominent tail fins, copious chrome trim, and the distinctive Buick delta-wing rear end treatment. The look was controversial — many considered it too extreme — but it has aged into a fascinating time capsule of late-1950s American automotive ambition. The 1960-1961 models toned down the excesses somewhat, resulting in cleaner, more elegant designs that are often considered more attractive today.
The LeSabre Custom was the premium version of Buick's entry-level full-size car, offering features like power windows, power seat, upgraded interior trim, and Buick's signature VentiPorts (portholes) on the front fenders. The hardtop coupe body style — a pillarless two-door — was the most stylish configuration, offering maximum visual appeal with its clean roofline.
Buick's engineering reputation was earned through details like the finned aluminum brake drums (superior heat dissipation), robust frame construction, and the smooth-riding coil spring suspension at all four corners. The LeSabre rode well, handled predictably for a car of its size, and offered a refinement level that belied its position as Buick's least expensive full-size model.
The 1959-1961 LeSabre Custom with the 401 Nailhead represents an affordable entry point into late-1950s full-size American car collecting, offering dramatic styling and genuine highway performance at prices well below comparable Cadillacs.
These are large cars requiring adequate storage space. Rust is the primary concern — check the lower body panels, rocker panels, floor pans, and trunk. The 1959 model's complex body trim and unique stampings make bodywork expensive. The Nailhead V8 is robust and long-lived, but the unusual valve configuration means head work requires a specialist. The Dynaflow transmission is unique to Buick and rebuilds require Buick-specific expertise. Chrome re-plating for the extensive 1959-era trim is very expensive. Interior parts are shared across the Buick full-size range, improving availability. The finned brake drums should not be turned too aggressively or they lose their cooling advantage.
The LeSabre was Buick's volume model throughout this period. The 1959 model featured the most dramatic fin styling. The 401 Nailhead was optional in the LeSabre, with the smaller 364ci Nailhead as the base engine. Total LeSabre production exceeded 100,000 units annually. The Custom trim represented a significant portion of LeSabre sales.