Looking for aftermarket parts to modify or upgrade your Avanti II with head gaskets? At Tunersports.com we carry a huge selection of the top name brand performance head gasket parts and accessories for your II.
Whether you have a 1965 or 2004 Avanti II in Base to GT trim we have you covered. We have 228 head gaskets available to mod your II. All parts have free shipping to the Continental US 48 States.
 SHIPS FROM MANUFACTURER C15408-050Copper Head Gasket... Cometic GM LS1 SB 4.100in Bore 0.050in Copper Head Gasket 2001-2004 Avanti II Base $125.59 |
 SHIPS FROM MANUFACTURER C15411-043Copper Head Gasket... Cometic Chevy Small Block 4.165in Bore 0.043in Copper Head Gasket (No Steam Holes) 1980-1985 Avanti II Base 1985-1985 Avanti II GT $125.59 |
SHIPS FROM MANUFACTURER C15412-043Copper Head Gasket... Cometic GM SB 18/23 Deg 4.200in Bore 0.043in Copper Head Gasket (No Steam Holes) 1980-1985 Avanti II Base 1985-1985 Avanti II GT $125.59 |
SHIPS FROM MANUFACTURER C15494-051The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.... Cometic GM LS1/LS2/LS3/LS6 Gen-III/IV Small Block V8 .051in MLS Cylinder Head Gasket 4.030in Bore 2001-2004 Avanti II Base $106.00 |
SHIPS FROM MANUFACTURER C15496-051The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.... Cometic GM LS1/LS2/LS3/LS6 Gen-III/IV Small Block V8 4.080in Bore .051in MLS Cylinder Head Gasket 2001-2004 Avanti II Base $106.00 |
IN STOCK - LOW C15514-051The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.... Cometic GM LS1/LS2/LS3/LS6 Gen-III/IV Small Block V8 .051in MLS Cylinder Head Gasket 4.070in Bore 2001-2004 Avanti II Base $99.40 |
SHIPS FROM MANUFACTURER C15517-040The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.... Cometic ChevroletLS1/LS2/LS3/LS6 Gen-III/IV SBC V8 4.200 mm Bore .040in MLS Cylinder Head Gasket 2001-2004 Avanti II Base $106.00 |
SHIPS FROM MANUFACTURER C15522-040The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.... Cometic GM LS1/LS2/LS3/LS6 Gen-III/IV Small Block V8 4.080in Bore .040in MLS Cylinder Head Gasket 2001-2004 Avanti II Base $106.00 |
SHIPS FROM MANUFACTURER C15540-051Cometic GM LS SEG 4.150in Bore .051 thick MLS Head Gasket 2001-2004 Avanti II Base $346.87 |
SHIPS FROM MANUFACTURER C15542-051Cometic GM LS SEG 4.200in Bore .051 thick MLS Head Gasket 2001-2004 Avanti II Base $346.87 |
 SHIPS FROM MANUFACTURER C5014-052Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.052"... Cometic GM LS Series V8 4.150in Bore .052in Thick MLX Head Gasket 2001-2004 Avanti II Base $128.12 |
 SHIPS FROM MANUFACTURER C5031-040Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manu... Cometic GM SBC V8 4.165in Bore .040 Thick MLX Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $128.12 |
SHIPS FROM MANUFACTURER C5215-027Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .027in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $108.26 |
SHIPS FROM MANUFACTURER C5215-030Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .030in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $108.26 |
SHIPS FROM MANUFACTURER C5215-036The Cometic MLS gasket is comprised of three to five layers of stainless steel. Cometic uses stainless steel for increased strength, its ability to rebound and resist corrosion. The outer layers of the gasket are embossed and coated on both sides with a Viton rubber material designed to meet the dem... Cometic GM Dart/Brodix Small Block V8 .036in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $108.26 |
 IN STOCK - LOW C5215-040Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.040". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gask... Cometic GM Dart/Brodix Small Block V8 .040in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $101.66 |
SHIPS FROM MANUFACTURER C5215-044Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .044in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $108.26 |
SHIPS FROM MANUFACTURER C5215-045The Cometic MLS gasket is comprised of three to five layers of stainless steel. Cometic uses stainless steel for increased strength, its ability to rebound and resist corrosion. The outer layers of the gasket are embossed and coated on both sides with a Viton rubber material designed to meet the dem... Cometic GM Dart/Brodix Small Block V8 .045in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $108.26 |
 SHIPS FROM MANUFACTURER C5215-051Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.051". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gask... Cometic GM Dart/Brodix Small Block V8 .051in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $108.26 |
SHIPS FROM MANUFACTURER C5215-056Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .056in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $138.36 |
SHIPS FROM MANUFACTURER C5215-060Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .060in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $138.36 |
SHIPS FROM MANUFACTURER C5215-066Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .066in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $138.36 |
SHIPS FROM MANUFACTURER C5215-070Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .070in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $138.36 |
SHIPS FROM MANUFACTURER C5215-075Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .075in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $138.36 |
SHIPS FROM MANUFACTURER C5215-080Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines a... Cometic GM Dart/Brodix Small Block V8 .080in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket 1980-1985 Avanti II Base 1985-1985 Avanti II GT $142.32 |