-JdK- Tom has reproduced OHV valve springs and pushrod return springs for both versions of the Model 18, 1922-25 and 1926-30. All were made to original specification. Price for valve springs is £70 per set, 1922-25 pushrod springs £40 per set, 1926-30 pushrod springs £50 per set. Contact us for Tom's email address when you're interested in purchasing a set.