I have for sale a set of Manley springs that are 1.25" diameter which is the same as stock. Along with them is a matching set of retainers which are +0.050" to allow for more lift on stock heads without machining. Both were used for 2k miles at most and are in great condition. I can get part numbers if you wish id have to find the boxes upstairs that they came in. For both 150+shipping.