All Teflon® Seal with Spring Loaded Wiper Prevents unwanted oil from contaminating the cylinder, which can cause loss of power. Makes engine tune-ups easier and provides smoother engine idle by stopping leakage of air through the intake valve guide. Packaged 16 per card.
Patented Metal Enclosed Teflon® Seal When installed correctly this seal is in actual physical contact with the valve guide and valve stem. Becomes an integral part of the head and will not loosen or pop off. Approximately 1/32" of virgin Teflon® makes contact with the valve stem. A stainless steel garter spring gives positive 360° contact. Packaged 16 per card.
Each type may require maching of the valve guide to ensure a proper fit, installer must match valve stem oil seal to appropriate valve stem and valve guide diameters. Necessary for most Dual valve spring applications.
