Looking for aftermarket parts to modify or upgrade your Chevrolet G30 with valve seals? At Tunersports.com we carry a huge selection of the top name brand performance valve seal parts and accessories.

SHIPS FROM MANUFACTURER 3164V-16New age engine builds require new age valve stem seals and we have them! These viton steel body (VSB) seals are available for most applications ranging from automotive to off road dirt bikes.... Cometic 8 x 12.3 x 12 x 17 Viton Valve Stem Seal - Positive Ring & Band - 16 Pack 1975-1980 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan 1985-1993 Chevrolet G30 Beauville / Chevy Van / Hi-Cube 1987-1993 Chevrolet G30 Sportvan $61.62 |

IN STOCK - DROPSHIPS 501-12COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The "O-Ring" Seals use the standard retainer and oil splash shi... COMP Cams Valve Seals 11/32in O Ring 1976-1976 Chevrolet G30 Beauville / Chevy Van / Hi-Cube 1978-1979 Chevrolet G30 Beauville / Chevy Van / Hi-Cube 1981-1986 Chevrolet G30 Beauville / Chevy Van / Hi-Cube 1983-1984 Chevrolet G30 Bonaventure $33.44 |
IN STOCK - DROPSHIPS 501-16Fits: 11/32" Valve Stems / OE-Size Valve Guides (.400" Outer Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Use standard o-ring Seal retainer and oil splash shield. Requires no machining.... COMP Cams Valve Seals 11/32in O Ring 1980-1986 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan 1983-1984 Chevrolet G30 Bonaventure $34.74 |
IN STOCK - DROPSHIPS 502-12COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The "O-Ring" Seals use the standard retainer and oil splash shi... COMP Cams Valve Seals 11/32in UmBRella 1992-1995 Chevrolet G30 Beauville / Chevy Van / Hi-Cube $38.90 |
IN STOCK - DROPSHIPS 503-12COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The "O-Ring" Seals use the standard retainer and oil splash shi... COMP Cams Valve Seals 11/32in Metal W/Pt 1976-1976 Chevrolet G30 Beauville / Chevy Van / Hi-Cube 1978-1979 Chevrolet G30 Beauville / Chevy Van / Hi-Cube 1981-1984 Chevrolet G30 Beauville / Chevy Van / Hi-Cube 1983-1984 Chevrolet G30 Bonaventure 1987-1995 Chevrolet G30 Beauville / Chevy Van / Hi-Cube $49.46 |
IN STOCK - DROPSHIPS 503-16Fits: 11/32" Valve Stems / .530" Guides (.630" Seal Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Smaller diameter than COMP Umbrella Seals to allow use with double springs.... COMP Cams Valve Seals 11/32in PTFE 1980-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan 1983-1984 Chevrolet G30 Bonaventure $59.47 |
IN STOCK - DROPSHIPS 503-8COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The "O-Ring" Seals use the standard retainer and oil splash shi... COMP Cams Valve Seals 11/32in PTFE 1980-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan 1983-1984 Chevrolet G30 Bonaventure $43.71 |
IN STOCK - DROPSHIPS 504-16Fits: 3/8" Valve Stems - OE-Size Valve Guides (.900" Outer Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Normally used when a larger-than-stock diameter spring is used. Requires no machining.... COMP Cams Valve Seals 3/8in UmBRella 1988-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan $42.23 |
IN STOCK - DROPSHIPS 505-16Fits: 3/8" Valve Stems - .530" Guides (.630" Seal Diameter). Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Smaller diameter than COMP Umbrella Seals to allow use with double springs.... COMP Cams Valve Seals 3/8in PTFE 1988-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan $58.14 |

IN STOCK - DROPSHIPS 501-1Fits: 11/32" Valve Stems - OE-Size Valve Guides (.400" Outer Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guidesUse standard o-ring Seal retainer and oil splash shieldRequires no machining.... COMP Cams Valve Seal 11/32in O Ring 1980-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan 1983-1984 Chevrolet G30 Bonaventure $28.36 |
IN STOCK - DROPSHIPS 503-1Fits: 11/32" Valve Stems - .530" Guides (.630" Seal Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guidesSmaller diameter than COMP Umbrella Seals to allow use with double springs... COMP Cams Valve Seal 11/32in PTFE 1987-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan $28.60 |
IN STOCK - DROPSHIPS 504-1Fits: 3/8" Valve Stems - OE-Size Valve Guides (.900" Outer Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guidesNormally used when a larger-than-stock diameter spring is usedRequires no machining.... COMP Cams Valve Seal 3/8in UmBRella 1988-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan $27.01 |
IN STOCK - DROPSHIPS 505-1Fits: 3/8" Valve Stems - .530" Guides (.630" Seal Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guidesSmaller diameter than COMP Umbrella Seals to allow use with double springs... COMP Cams Valve Seal 3/8in PTFE 1988-1996 Chevrolet G30 Beauville / Chevy Van / Hi-Cube / Sportvan $28.60 |