Replacing the standard Ford valve seals with durable, long wearing PTFE seals is a must to assure good oil control in your 1600 Ford "Kent" engine. Utilizes a self-tightening design that compensates for valve stem wear. Set of 8 seals is enough for one engine.
The outside diameter of these seals is also smaller than the stock Ford rubber seals (0.52" vs. 0.75"), which makes them a good candidate for non-FF1600 engines running dual valve springs.