This seal fits standard Ford Pinto valve stems. The base incorporates a 0.040" valve spring shim, which also acts as a seal retainer. The OD of the step portion is 0.9", small enough to fit most single valve springs (including our Ivey racing valve springs). These seals will also work with valve guides that are too small to accept the standard Ford seals (0.48"). Sold individually.
While supplies last -- this item will not be backordered.