SmallBlock

Smallblock refers to a class of V8 engines designed with compact dimensions and lower weight than their big-block counterparts. The term is most closely associated with Chevrolet, but Ford and Chrysler have produced their own small-block families, each built to offer a balance of packaging efficiency, performance, and ease of maintenance.

Chevrolet small-block: Introduced in 1955 with the 265 cubic inch V8, the Chevrolet small-block became a mainstay in GM cars. It evolved through several displacements, including 283, 327, 350, and 400 cubic inches, and remained in production for decades. It is recognized for its simple pushrod design, compact footprint, and extensive aftermarket support.

Ford small-block: Ford’s Windsor family began in 1962 with the 221 cubic inch V8 and expanded to 260, 289, and 302 displacements. The Windsor design emphasized efficient packaging and reliability, becoming a foundation of Ford’s V8 lineup in cars, light trucks, and performance models for many years.

Chrysler/Mopar small-block: Chrysler’s LA-series small-blocks were introduced in the mid-1960s, starting with the 273 cubic inch V8, followed by 318, 340, and 360 cubic inches. These engines powered Dodge, Plymouth, and Chrysler vehicles and gained popularity in performance and racing applications.

Design and legacy: All three families traditionally use overhead-valve, pushrod configurations with relatively compact blocks that facilitate easier installation and lighter weight than big-blocks. The small-block concept fostered extensive aftermarket support and remains familiar to enthusiasts, with many units restored, swapped, or used in classic vehicles.