Torque output on the MGB is good with a peak of 110 lb Horsepower was rated at 95net bhp on both 5 main bearing and earlier 3-bearing cars with peak power coming at 5400 rpm with a 6000 rpm redline. In February 1964 positive crank-case breathing was introduced and engine prefix changed to 18GA, until October 1964, when a five-bearing crankshaft design was introduced, engine prefix became 18GB. The earlier cars used a three main bearing crankshaft, 18G-series. This engine was essentially an enlarged version of that used in the MGA with displacement being increased from 1622 cc to 1798 cc. The majority of MGBs were exported to United States.Īll MGBs (except the V8 version) utilized the BMC B-Series engine. The engine was upgraded in October 1964 to a five-bearing crankshaft in an effort to improve reliability. The 3-bearing 1798 cc B-Series engine produced 95 hp (71 kW) at 5,400 rpm.
Handling was one of the MGB’s strong points. The MGB’s performance was considered brisk at the time of its introduction, with a 0–60 mph (96 km/h) time of just over 11 seconds, aided by the relatively light weight of the car.
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