A specially built 7AG engine is built by us for use in Clubman cars like this beaut PRB. We offer a range of stroked A & S Toyota engines, with the stock 4A being pushed to nearly 2 litres, and the 3S to nearly 2.5 litres. In both cases, the increase in torque is significant , making the car far more responsive. The A series engines (4A, 7A etc) can be built with 16 or 20 valve heads.