1970 can perhaps be described as the peak of Ford’s performance. Especially with the introduction of 1970 Mustang Boss 429. The 1970 ford mustang boss 302 united Ford’s highly sophisticated small block with Mustangs superior suspension for an excellent race car.
Although, the 1970 Ford Mustang Boss 302 engine was pioneered back in 1968, it wasn’t put in production as the company needed a higher output small block. All through 1969 onto 1970 Ford finally perfected the engine and the Boss 302 was as close as you could come to purchasing a street car with a racing engine.
1970 Boss 302 Mustang specs
Two 6-cylinder alternatives were obtainable in 1969, a 200-cubic inch edition with a 120-horsepower output and a 250-cubic inch motor slated at 155-horsepower. However, there were rather few alterations in the V-8 options presented when compared to the previous year. All 390 cubic inch versions were discarded and the base was a 302-cubic inch 2-barrel V-8. A 4-barrel version of the 302 was the Boss 302, obtainable only on the Boss 302 Mustang. There was a 2-barrel and 4-barrel version of the 351 cubic inch V-8, producing 250 and 300 horsepower, respectively.
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The Boss 302 features a forged steel crankshaft, screw-in freeze plugs and 4-bolt main caps. These adjustments were made as part of the 302 Tunnel Port design. Street versions made use of connecting rods like the 289 Hi-Po whereas the Trans Am edition utilized heavier 7/16″ bolts.
1970 Ford Mustang Boss 302 specs changed little from 1969 Ford Mustang Boss 302 and included dual-unit headlights rather than the quad-unit used in the past. The 390cid was neglected and the 351-cid Cleveland V-8 engines replaced the 351 Windsor giving an output of 290 horsepower, smaller intake valves for easier drivability, RWD manual 4-speed gearbox, a redesigned dual exhaust system, quicker steering, competition suspension, aluminum valve covers replaced the chrome, the standard Hurst shifter and F60x15 tires. The Boss Mustang could accelerate from 0 to 60 mph (97 km/h) in 6.9 seconds.
The Boss 302 exterior received new stripes and had Grabber colors, the side “hockey stick” stripes which started along the top of the hood and a new gloss black hood scoop. In a bid to attain the SCCA prerequisite for racing a production car, a minimum of 6,500 Boss 302s had to be manufactured. Ford built a total of 7,013 over two years, of which 6,319 were 1970 models.
1970 Ford Mustang Boss 302 images
1970 Ford Mustang Boss 302 interior
On the Boss 302 interior, Ford gave the selection of deluxe interior instead of the standard interior, high backed buckets became standard fittings with the seat back release relocated to the lower part of the seat, a model “oval” steering wheel (evidently to make entry and exit easy), and the ignition switch was repositioned to the steering column which when switched to the off position, locked the steering wheel.