Looking for aftermarket parts to modify or upgrade your 1990 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 C15009-020Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chevrolet LB1/LB4/LU2 Gen-1 90 Degree V6 .020in Fiber Fuel Pump Mounting Gasket 1988-1993 GMC C2500 Sierra / Sierra SLE / Sierra SLX $33.96 |
SHIPS FROM MANUFACTURER C5531-060Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic GM .060in Fiber Distributor Gasket 1988-1993 GMC C2500 Sierra SLX $33.08 |
SHIPS FROM MANUFACTURER C5642-031Fully cured nitrile butadiene rubber binder for maximum fluid resistance... Cometic Chrysler/Ford/GM .031in Fiber Fuel Pump Gasket 1988-1993 GMC C2500 Sierra / Sierra SLE $33.96 |
SHIPS FROM MANUFACTURER C5739-027MLS 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 .027in MLS Cylinder Head Gasket - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
SHIPS FROM MANUFACTURER C5739-030MLS 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 - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
SHIPS FROM MANUFACTURER C5739-036MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V-6 4.3L 4.060in Bore .036 inch MLS Head Gasket 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
SHIPS FROM MANUFACTURER C5739-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V-6 4.3L 4.06in Bore .040 inch MLS Head Gasket 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
SHIPS FROM MANUFACTURER C5739-045MLS 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 - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
SHIPS FROM MANUFACTURER C5739-051MLS 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 - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
SHIPS FROM MANUFACTURER C5739-056MLS 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 .056in MLS Cylinder Head Gasket - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $150.19 |
SHIPS FROM MANUFACTURER C5739-060MLS 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 - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $150.19 |
SHIPS FROM MANUFACTURER C5739-080MLS 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 - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $160.39 |
SHIPS FROM MANUFACTURER C5739-120MLS 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 - 4.060in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $224.47 |
SHIPS FROM MANUFACTURER C5740-027MLS 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 .027in MLS Cylinder Head Gasket - 4.120in Bore 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
SHIPS FROM MANUFACTURER C5740-040MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel... Cometic Chevy 229/262 V-6 4.3L 4.12in Bore .040 inch MLS Head Gasket 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $121.11 |
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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $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 1988-1993 GMC C2500 Sierra / Sierra SLX 1988-1995 GMC C2500 Sierra SLE $150.19 |