Fel-Pro SS 5566 Engine Valve Stem Oil Seal Set

If you're rebuilding the top end of your engine, replacing the valve stem seals is a smart move. These Fel-Pro SS5566 valve stem oil seals are designed to keep oil from leaking down the valve guides and into your combustion chambers. This helps prevent blue smoke on startup, oil consumption, and fouled spark plugs.

Fel-Pro knows that not all engine blocks are perfectly flat, so they build these seals with materials and designs that work well even on less-than-perfect sealing surfaces. They're application-specific, meaning you get the right type of seal—whether it's an umbrella, O-ring, or positive seal—for your particular engine. Plus, they include a handy installation tool to protect the seal's inner lip as you press it into place, which is a nice touch that can save you some headaches during the job.

This set fits a wide range of classic vehicles, including many Ford pickups and cars from the 1940s and 50s, as well as Mercury and Allard models. It's a well-built set that addresses common sealing issues you might find during an engine repair.