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The Ford Boss 302 (formally the "302 H.O.") is a high-performance "small block" 302 cu in (4.9 L) V8 engine manufactured by Ford Motor Company.The original version of this engine was used in the 1969 and 1970 Boss 302 Mustangs and Cougar Eliminators and was constructed by attaching heads designed for the planned 351 Cleveland (which debuted the following year) to a Ford small block. [1]
Ford's new 302 "Tunnel-Port" engine was originally envisioned as the secret weapon for the 1968 Trans-Am racing season, which would bring them a third Championship win. Starting with a 1967 GT-40 block, Ford topped the engine with a new head design. The new heads were based on the design of Ford's NASCAR 427 heads.
With a longer stroke, the compression ratio became excessively high with the 351-2V heads and flat top pistons. Ford engineers reduced the compression ratio by using a piston with a compression height that was too short and this led to an excessive deck clearance of 0.067" to .080" compared to a 351-2V at 0.035" .
2012–present; The 3.2 is an I5 engine used in the Ford Transit, the Ford Ranger, Ford Everest, Mazda BT-50 and the Vivarail. For the North American-spec Transit, * the 3.2 L Duratorq is modified to meet American and Canadian emissions standards and is branded as a Power Stroke engine.
The Mustang Boss 302 is a high-performance 302 cu in (4.9 L) H.O. V8-powered variant of the Ford Mustang originally produced by Ford in 1969 and 1970. Developed to meet homologation requirements to compete in Trans Am racing, it was Ford's response to the success of the Chevrolet Camaro Z/28 in the 5 L (305.1 cu in) and under SCCA series since 1967.
It was used in the Ford Thunderbird, 1959-60 Edsel, Mercury, and some high-end Ford cars. The Ford version was the P-code "Thunderbird V8", which for cars equipped with a manual transmission had a compression ratio of 8.1:1 and was rated at 193 bhp (144 kW) at 4,400 rpm and with 280 lb⋅ft (380 N⋅m) at 2,600 rpm.