The Chevrolet "big block" engine is a term for a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V8 engines; that were developed and produced by the Chevrolet Division of General Motors, from the 1950s until present.

The Iso Grifo is a limited production grand tourer manufactured by Italian automobile manufacturer Iso Autoveicoli S.p.A. between 1965 and 1974. Intended to compete with Grand Touring offerings from Ferrari and Maserati, it used a series of American power trains and components supplied by Chevrolet and Ford. Styling was done by Giorgetto Giugiaro at Bertone, while the mechanicals were the work of Giotto Bizzarrini.