Short-length 3.52" intake valve with 1.22" diameter for original Cooper S with AEA185 or AEG163 cylinder head casting. Not to be used in other head castings. Now with low-profile, high-flow thin head design, in modern material for long life. Ref: AEG594, V33974, AEG0594.
Verify which type of valve tip you need, see comparison picture.