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Looking for aftermarket parts to modify or upgrade your 1985 GMC C1500 with head gaskets? At Tunersports.com we carry a huge selection of the top name brand performance head gasket parts and accessories.
 SHIPS FROM MANUFACTURER C5740-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .051in MLS Cylinder Head Gasket - 4.120in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $121.11 |
 SHIPS FROM MANUFACTURER C5740-120MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .120in MLS Cylinder Head Gasket - 4.120in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $224.47 |
 SHIPS FROM MANUFACTURER C5741-030MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .030in MLS Cylinder Head Gasket - 4.155in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $121.11 |
 SHIPS FROM MANUFACTURER C5741-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V6 4.3L 4.155in .040in MLS Head Gasket 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $121.11 |
 SHIPS FROM MANUFACTURER C5741-045MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .045in MLS Cylinder Head Gasket - 4.155in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $121.11 |
 SHIPS FROM MANUFACTURER C5741-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .051in MLS Cylinder Head Gasket - 4.155in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $121.11 |
 SHIPS FROM MANUFACTURER C5741-060MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .060in MLS Cylinder Head Gasket - 4.155in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $150.19 |
 SHIPS FROM MANUFACTURER C5741-075MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .075in MLS Cylinder Head Gasket - 4.155in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $150.19 |
 SHIPS FROM MANUFACTURER C5741-080MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .080in MLS Cylinder Head Gasket - 4.155in Bore 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $160.39 |
 SHIPS FROM MANUFACTURER C5741-140MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V6 4.3L 4.155in .140in MLS Head Gasket 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $150.19 |
 SHIPS FROM MANUFACTURER C5786-040MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing... Cometic Chevy Gen1 Small Block V8 .040in MLX Cylinder Head Gasket-4.220in Bores-Round Bore 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $131.42 |
 SHIPS FROM MANUFACTURER C5786-044MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing... Cometic Chevy Gen1 Small Block V8 .044in MLX Cylinder Head Gasket-4.220in Bores-Round Bore 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $136.39 |
 SHIPS FROM MANUFACTURER C5786-051MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing... Cometic Chevy Gen1 Small Block V8 .051in MLX Cylinder Head Gasket-4.220in Bores-Round Bore 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $136.39 |
 SHIPS FROM MANUFACTURER C5786-052MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing... Cometic Chevy Gen1 Small Block V8 .052in MLX Cylinder Head Gasket-4.220in Bores-Round Bore 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $136.39 |
 SHIPS FROM MANUFACTURER C5786-062MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing... Cometic Chevy Gen1 Small Block V8 .062in MLX Cylinder Head Gasket-4.220in Bores-Round Bore 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $136.39 |
 SHIPS FROM MANUFACTURER C5954-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Gen1 Small Block V8 .040in MLS Cyl Head Gasket-4.060in Bore-Brodix 12-23 Degree Heads 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $107.12 |
 SHIPS FROM MANUFACTURER CF1008High quality and reliable hardware... Cometic Harmonic Balancer Bolt Kit 7/16-20 x 2.25in 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $42.98 |
 IN STOCK - LOW CF1009High quality and reliable hardware... Cometic Header Bolts 3/8 - 16 3/4in Grade 5 Black Oxide Finish With Hex and Socket Head 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $43.77 |
 SHIPS FROM MANUFACTURER CP15012Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chrysler/Ford/GM Fuel Pump Gasket .031in Fiber - 4 Bolt - 10 Pack 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $41.68 |
 SHIPS FROM MANUFACTURER CP5126Cometic's HTS Gaskets are designed using reinforced gasket material compounds like armor-clad, graphite, and galvanized steel... Cometic Chevy Gen1 SB V8 Header Gasket .060in HTS 1.810in-Round Port Hooker/Stahl Pattern-20 Pack 1980-1986 GMC C1500 Base / High Sierra / Sierra Classic $191.42 |
 SHIPS FROM MANUFACTURER PRO1006T-4060-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy LB1/LB4 Gen1 90 Degree V6 Top End Gasket Kit-4.060in Bore-.040in MLS Cyl Head Gasket 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $196.00 |
 IN STOCK - DROPSHIPS 3678MAHLE(R) gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.... MAHLE Original Am General Hummer 93-92 Cylinder Head Gasket 1982-1986 GMC C1500 Base / High Sierra / Sierra Classic $77.81 |
 IN STOCK - DROPSHIPS 5744MAHLE(R) gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.... MAHLE Original Chevrolet Astro 05-85 Cylinder Head Gasket 1985-1986 GMC C1500 Base / High Sierra / Sierra Classic $50.80 |
 IN STOCK - DROPSHIPS HS1178VKMAHLE(R) gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.... MAHLE Original Buick Century 78-77 Head Set 1979-1986 GMC C1500 Base / High Sierra / Sierra Classic $94.49 |
 IN STOCK - DROPSHIPS HS3678MAHLE(R) gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.... MAHLE Original Am General Hummer 93-92 Head Set 1982-1986 GMC C1500 Base / High Sierra / Sierra Classic $232.39 |