Looking for aftermarket parts to modify or upgrade your 1981 GMC C2500 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 CF1008High quality and reliable hardware... Cometic Harmonic Balancer Bolt Kit 7/16-20 x 2.25in 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 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 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 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 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 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 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 Base / High Sierra / Sierra Classic $191.42 |
SHIPS FROM MANUFACTURER PRO1005T-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.375in Bore-.051in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $227.56 |
SHIPS FROM MANUFACTURER PRO1005T-4000-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 366 Mark-IV Big Block V8 Top End Gasket Kit-4.000in Bore-.040in MLS Cyl Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $369.45 |
SHIPS FROM MANUFACTURER PRO1005T-4300-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.300in Bore-.040in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $220.59 |
SHIPS FROM MANUFACTURER PRO1005T-4300-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.300in Bore-.051in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $369.45 |
SHIPS FROM MANUFACTURER PRO1005T-4320-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.320in Bore-.040in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $216.43 |
SHIPS FROM MANUFACTURER PRO1005T-4350-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.350in Bore-.040in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $216.43 |
SHIPS FROM MANUFACTURER PRO1005T-4375-027MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.375in Bore-.027in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $369.45 |
SHIPS FROM MANUFACTURER PRO1005T-4375-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.375in Bore-.051in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $227.56 |
SHIPS FROM MANUFACTURER PRO1005T-4375-062MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.375in Bore-.062in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $262.31 |
SHIPS FROM MANUFACTURER PRO1005T-4560-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.560in Bore-.040in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $369.45 |
SHIPS FROM MANUFACTURER PRO1005T-4610-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.610in Bore-.040in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $369.45 |
SHIPS FROM MANUFACTURER PRO1005T-4630-045MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.630in Bore-.045in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $369.45 |
SHIPS FROM MANUFACTURER PRO1005T-4630-051MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.630in Bore-.051in MLS Cylinder Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1985 GMC C2500 Base / High Sierra / Sierra Classic $369.45 |
SHIPS FROM MANUFACTURER PRO1040T-045MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic GM L59/LM7/LR4 Small Block V8 Top End Gasket Kit-3.840in Bore-.045in MLS Cyl Head Gasket 1979-1982 GMC C2500 Sierra Grande 1979-1986 GMC C2500 Base / High Sierra / Sierra Classic $390.12 |

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 1979-1982 GMC C2500 Sierra Grande 1979-1986 GMC C2500 Base / High Sierra / Sierra Classic $94.49 |
IN STOCK - DROPSHIPS HS1185EMAHLE(R) gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.... MAHLE Original Buick Apollo 75-73 Head Set 1980-1985 GMC C2500 Base $99.31 |
IN STOCK - DROPSHIPS HS3902VCMAHLE(R) gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.... MAHLE Original Chevrolet C10 80 Head Set 1980-1982 GMC C2500 Sierra Grande 1980-1986 GMC C2500 Base / High Sierra / Sierra Classic $132.74 |