I have both Farndon crank and rods fitted to my engine and both are very good products. the Rods are EN24 steel and are H section carrillo pattern with bronze bushed little ends. They can supply interference fit little ends if you require them. Doug Kiddie made a crank for my K it was useless .after waiting 6 months for him to make it the crank was not cross drilled as ordered, he had machined grooves around the mains to get around the problem, the crank pins were undersized, the crank was so heavy it better suited a tractor and the counter balance weights fouled the block. Apart from these minor defects it was ok.