Ford developed the 300-cubic-inch inline six-cylinder and the 302 V-8 engines to serve two distinct purposes. The straight-six is an economical workhorse. The 302 is about compact power and performance. F-Series trucks are likely to have straight-six, while the 302 powers Mustangs.
Ford began production of the 300 straight-six in 1965 for the F-series pickup truck and as an industrial/agricultural powerplant. Tractors, wood chippers and delivery step vans used the 300. Most vehicles with a 300 traveled 300,000 miles before the first overhaul. Production ended in 1996.
The 300 with a single-barrel carburetor debuted in pickups generating 170 horsepower and 283 foot-pounds of torque. Its bore was 4 inches and the stroke 3.98 inches. The compression ratio was 8.9-to-1. By 1973, the horsepower dropped to 101, according to Engine Facts and Car Buddy.
Ford's 302 V-8 saw production from 1968 to 1995 and powered Mustangs, Lincolns and Mercurys. It's primarily known as the powerplant in performance Mustang Boss 302s during the 1960s muscle car era.
The two-barrel-carburetor version of the 302 in 1968 delivered 210 horsepower and 295 foot-pounds of torque with a 4-inch bore, 3-inch stroke and a 9.5-to-1 compression ratio. The four-barrel-carburetor version developed 230 horsepower and 310 foot-pounds of torque. The Boss 302 developed 290 horsepower.
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