Family owned and operated since 1982, Enginetech is the Engine Builder’s source for high quality engine parts. Enginetech offers a complete line of products for virtually every engine, including import and domestic engines. Our product line includes complete engine kits as well as individual components to suit your needs. We offer nationwide distribution, and incredible customer service. Enginetech parts are engineered specifically for the engine rebuilder. We treat our customers as we ourselves would want to be treated, and we are passionate about going above and Features Designed specifically for the engine rebuilder Domestic and Imports Applications Packaged in multi-packs for every engine requirement Simple part numbering system Superior design and materials of Seals Superior packaging helps you stay organized Application Summary1969-1974 GMC C15/C1500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS1975-1978 GMC C15 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS1975-1978 GMC C15 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS1979-1986, 1988-1999 GMC C1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS1988-1989, 1994-1999 Chevrolet C1500 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS1990-1993 Chevrolet C1500 7.4L -CC 454CID V8 OHV 16 Valve Naturally Aspirated GAS1992-1999 Chevrolet C1500 Suburban 5.7L -CC 350CID V8 OHV 16 Valve Naturally Aspirated GAS Part Numbers: Specifications Brand: Enginetech Part Number: S530V-20 Part Type: Engine Valve Stem Oil Seal UPC: 707473099943 GTIN: 00707473099943 Item Dimensions: 5.25 x 3.25 x 1.25 IN Item Weight: 0.25 lb Package Dimensions: 5.25 x 3.25 x 1.25 IN Package Weight: 0.25 LB Package Quantity: 20 EA Et_seal Length: .500 Guide_od: .530 Stem_od: .344 Valve Stem Size: 11/32