Through the rest of the decade, Ford gradually shifted V8 applications to the Modular engine, with the Mustang transitioning in 1996. The Modular 4.6 L OHC V8 debuted in the 1991 Lincoln Town Car, signaling the eventual demise of the OHV Ford Small Block. The heads from the Boss 302 became the production heads on the 335-series Cleveland engines, which used the same bore spacing and head bolt configuration as the small block engines.Īs the 1980s drew to a close, Ford began the design of a new OHC V8 to replace the venerable small block design. The next iteration of the engine mated an improved head design to the 302 cu in block, producing the famous " Boss 302". The first attempt mated a tunnel-port head to a 289 cu in block, but the displacement proved to be too small to deliver the desired power. In response to the Chevrolet Camaro's success in the SCCA Trans-Am Series, Ford engineers developed a new racing engine from the small block. And for a brief time in the early 1980s a version with a smaller bore diameter that displaced 255 cubic inches (4.2 L) was produced as Ford struggled with emissions and fuel economy. The 351W (so identified to distinguish from the 335-series Cleveland 351C) uses a taller block than the other engines in the series to avoid excessively short connecting rods. A 351 cu in (5.8 L) model was offered beginning in 1969 and continuing until 1996. Two additional displacements were produced during the engine's history. The design was soon bored to 260 cu in (4.3 L) and again to 289 cu in (4.7 L), then stroked to 302 cu in (4.9 L), settling on the most common displacement offered until the engine's retirement in 2001, nearly 40 years after the basic block design debuted. Coolant is routed out of the block through the intake manifold. The valves are in-line and use straight six-bolt valve covers. All Ford Small Block engines use two-valve-per-cylinder heads, with "2V" and "4V" designations indicating the number of barrels (or venturi) in the carburetor. The engine uses a separate aluminum timing chain cover, which differentiates it from the later 335-series Cleveland engines that use an integrated timing cover. ![]() Displacing 221 cu in (3.6 L), it was designed to save weight, using thin-wall casting with a block that does not extend below the centerline of the crankshaft. The small-block engine was introduced in the 1962 Ford Fairlane and Mercury Meteor cars. The small block remains available for purchase from Ford Performance Parts as a crate engine. The designations for each were derived from the original locations of manufacture: Windsor, Ontario and Cleveland, Ohio.įrom 1962 through the 1990s these engines were marinized by various companies (255ci/4.2L excepted). The 2001 Explorer SUV was the last North American installation of the engine, and Ford Australia used it through 2002 in the Falcon and Fairlane.Īlthough sometimes called the "Windsor" by enthusiasts, Ford never used that designation for the engine line as a whole it was only adopted informally well into its run to distinguish the 351 cu in (5.8 L) version from the 351 cu in (5.8 L) "Cleveland" version of the 335-family engine that had the same displacement but a significantly different configuration. ![]() This engine was installed in several of the company's most famous products, notably the Mustang, as well as the Mercury Cougar, Ford Torino, Ford Granada, Mercury Monarch, Ford LTD, Mercury Marquis, Ford Maverick and Ford F-150 pickup.įor the 1991 model year, Ford began phasing in their new Modular V8 engine to replace the small-block, beginning with the Lincoln Town Car and continuing through the 1990s. ![]() Originally produced with a displacement of 221 cu in (3.6 L), it eventually increased to 351 cu in (5.8 L), but was most commonly sold (from 1968-2000) with a displacement of 302 cu in (later marketed as 5.0 L). The Ford small-block (aka Windsor V8) is a series of 90° overhead valve small block V8 automobile engines manufactured by the Ford Motor Company from July 1961 to December 2000.ĭesigned as a successor to the Ford Y-block engine, it was first installed in the 1962 model year Ford Fairlane and Mercury Meteor.
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