Looking for aftermarket parts to modify or upgrade your 1981 GMC C3500 with gasket kits? At Tunersports.com we carry a huge selection of the top name brand performance gasket kit parts and accessories.

SHIPS FROM MANUFACTURER C5435Includes all Gaskets, O-Rings, Seals, Etc Needed for a Cam Change... Cometic Chevrolet Gen-1 Small Block V8 Camshaft Seal - Jesel Belt Drive - 86586 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $81.72 |

SHIPS FROM MANUFACTURER C5085Cometic GM 3.2/3.8/4.1/4.8L Inline 6 3.8/4.3L V6 Chevy Gen1 SB V8 Silicone Rear Main Seal-2 Piece 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $44.66 |
SHIPS FROM MANUFACTURER C5681Cometic Chevy 1955-1985 Gen1 Small Block V8 Rear Main Seal-Align Honed 400 & Aluminum Block-2 Piece 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $59.00 |

SHIPS FROM MANUFACTURER C15254A chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core... Cometic GM Turbo 350 .075in AFM Transmission Oil Pan Gasket 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $48.70 |
SHIPS FROM MANUFACTURER C15607Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevy Mark-IV BB V8 .094in Fiber Oil Pan Gasket Kit 1979-1982 GMC C3500 Sierra Grande 1979-1986 GMC C3500 Base / High Sierra / Sierra Classic $59.74 |
SHIPS FROM MANUFACTURER C5294Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevy Gen1 Small Block V8 .094in Fiber Oil Pan Gskt Kit-Right Side Dipstick-Thick Front Seal 1979-1985 GMC C3500 High Sierra 1980-1982 GMC C3500 Sierra Grande 1980-1985 GMC C3500 Base / Sierra Classic $59.74 |
SHIPS FROM MANUFACTURER C5294-075AFMA chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core... Cometic Chevy Gen1 Small Block V8 .075in AFM Oil Pan Gasket Kit-Right Side Dipstick-Thick Front Seal 1980-1982 GMC C3500 Sierra Grande 1980-1985 GMC C3500 Base / High Sierra / Sierra Classic $55.58 |
SHIPS FROM MANUFACTURER C5296Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet Gen-1 Small Block V8 .094i Fiber Oil Pan Gasket Kit Right Side Dipstick Thin Front 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $62.01 |
SHIPS FROM MANUFACTURER C5344-060A chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core... Cometic Chevrolet Mark-IV Big Block V8 .060in AFM Oil Pan Gasket Kit - Trimmed Side Rails 1979-1982 GMC C3500 Sierra Grande 1979-1986 GMC C3500 Base / High Sierra / Sierra Classic $63.72 |
SHIPS FROM MANUFACTURER C5344-075A chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core... Cometic Chevrolet Mark-IV Big Block V8 .075in AFM Oil Pan Gasket Kit - Trimmed Side Rails 1979-1982 GMC C3500 Sierra Grande 1979-1986 GMC C3500 Base / High Sierra / Sierra Classic $54.59 |
SHIPS FROM MANUFACTURER C5488Cometic Chevy Gen1 SB V8 Oil Pan Gasket Kit-Left Side Dipstick 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $55.24 |
SHIPS FROM MANUFACTURER C5488-060Cometic Chevy Gen1 SB V8 .060in Oil Pan Gasket Kit-Left Side Dipstick 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $62.96 |

SHIPS FROM MANUFACTURER PRO1005TCometic Street Pro Kits are geared toward the street rider who is looking to purchase a kit with all necessary gaskets and seals needed for your rebuild.... Cometic Street Pro GM 1970-85 454ci Big Block 4.375 Top End Gasket Kit 1979-1982 GMC C3500 Sierra Grande 1979-1985 GMC C3500 Base / High Sierra / Sierra Classic $220.59 |

SHIPS FROM MANUFACTURER C5538-047Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet Gen-1 Small Block V8 .047in Fiber Thermostat Gasket 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $32.93 |
SHIPS FROM MANUFACTURER C5574-018A chemically blown, compounded, nitrile synthetic rubber bonded to an aluminum core... Cometic GM/Ford/Chrysler/Dodge .018in AFM Thermostat Housing Gasket 1980-1986 GMC C3500 Base $32.93 |

SHIPS FROM MANUFACTURER C15282Cometic Chevy Gen1/2 Small Block V8-4.3L Gen1 90 Deg V6-Gen-3 Inline 6-153 4 Cyl Timing Cover Seal 1980-1982 GMC C3500 Sierra Grande 1980-1984 GMC C3500 Base / High Sierra / Sierra Classic $42.90 |
SHIPS FROM MANUFACTURER C15615Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet Gen-1 Small Block V8 .031in Fiber Timing Cover Gasket 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $37.16 |
SHIPS FROM MANUFACTURER C5261-031Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet Gen-1 Small Block V8 .031in Fiber Timing Cover Gasket 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $45.25 |
SHIPS FROM MANUFACTURER C5376Cometic Chevy Gen 1 Small Block V8 Timing Cover Seal Jesel Belt Drive Dual Lip, Wet & Dry Sump 86587 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $77.28 |
SHIPS FROM MANUFACTURER C5379Cometic Chevy Gen 1 Small Block V8 Rear Main Seal Dual Lip Wet & Dry Sump 86625 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $107.17 |
SHIPS FROM MANUFACTURER C5530Cometic Chevrolet Gen-1 Small Block V8 Timing Cover Gasket Kit - Front Cover - 0.31in 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $50.73 |
SHIPS FROM MANUFACTURER CP15282Cometic Chevy Gen-1 Small Block V8 Timing Cover Seal - 10 Pack 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $71.59 |
SHIPS FROM MANUFACTURER CP15615Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevy Gen-1 Small Block V8 Timing Cover Gasket .031in Fiber - 10 Pack 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $72.05 |

SHIPS FROM MANUFACTURER PRO1005T-4200-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 396/402 Mark-IV Big Block V8 Top End Gskt Kit-4.200in Bore-.040in MLS Cyl Head Gskt 1979-1982 GMC C3500 Sierra Grande 1979-1985 GMC C3500 Base / High Sierra / Sierra Classic $216.43 |

SHIPS FROM MANUFACTURER C5680Cometic Chevrolet Gen-1 90 Degree V6 Gen-1 Small Block V8 Rear Main Seal - 2 Piece - Viton 1980-1982 GMC C3500 Sierra Grande 1980-1986 GMC C3500 Base / High Sierra / Sierra Classic $55.46 |