ford barra crankshaft weight is about 195kg. so, add the weight of manifolds and other components. it is most likely around 250kg. enjoy your engine! Ford's newest engine, the Barra, is a lightweight option that offers drivers great fuel economy. The engine displaces just 1.8 liters, but it puts out more than 120 horsepower, meaning it can push a Focus ST to speeds up to 145 mph. The Barra weighs in at only 195 kg, and that includes the alternator. Not bad for a small engine. In addition to being light, it's also efficient - it gets an incredible 8.6 kilometers per liter in the city. That's almost twice as far as larger engines can usually get. When it comes to efficiency, there's nothing better than downsizing your engine, and the Barra does just that. You can buy from link below – https://www.totalperformance.net.au/ford-351-393-stroker-crankshaft-3.850-forged-4340 Direct Approach – 1800 351 351 or (03) 9362 0266