Speedmaster PCE354.1003 valve stem seals are precision-engineered from durable steel and Viton materials, delivering superior heat and chemical resistance for demanding LS engine applications. Compatible with both dual and single spring setups, these seals provide a reliable barrier against oil consumption and valve guide wear.
Designed to fit 8mm valve stems with 0.4825-inch guides, these seals offer a precise, leak-free fit that helps maintain proper oil control and extend engine longevity. An ideal upgrade or replacement choice for LS engine builds requiring dependable sealing performance.
MPNPCE354.1003
UPC840136545354
