Ford 351 Cleveland Eng: Htb for Max Perf: How to Build for Max PerformanceFord's 351 Cleveland was designed to be a 'mid sized' V 8 engine, and was developed for higher performance use upon its launch in late 1969 for the 1970 models. This unique design proved itself under the hood of Ford's Mustang, among other high performance cars. The Cleveland engine addressed the major shortcoming of the Windsor engines that preceded it, namely cylinder head air flow. The Windsor engines just couldn't be built at the time to compete