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The largest engine installed in a 1971 Barracuda was the 440 V8.
280hp in the 383 engine
The engine was rated for 230hp.
the 440 engine had 375 horse.
The power of the engine and the maximum speed of the Plymouth barracuda manual 1972 is 238 PS (175.3 kW) (234.8 bhp) and 190 km/h (118 mph) respectively.
The engine is referred to as a 1600, but actual displacement is 1570 cc.
that all depended on the engine size and the rear gearing.
389 cid
1131 cc / 69.0 cu in.
1131 cc / 69.01 cu in
on the passenger side of the engine under the exhaust manifolds on the side of the block.
66.6 cu. in.