Looking for aftermarket parts to modify or upgrade your 2003 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 2003 Avanti II in Base trim we have you covered. We have 112 head gaskets available to mod your II. All parts have free shipping to the Continental US 48 States.
 SHIPS FROM MANUFACTURER C5789-036COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.125 inch Bore .036 inch MLS Headgasket 2001-2004 Avanti II Base $113.55 |
 SHIPS FROM MANUFACTURER C5789-040COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.125 inch Bore .040 inch MLS Headgasket 2001-2004 Avanti II Base $113.55 |
 SHIPS FROM MANUFACTURER C5789-051COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.125 inch Bore .051 inch MLS Headgasket 2001-2004 Avanti II Base $113.55 |
 SHIPS FROM MANUFACTURER C5789-060COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.125 inch Bore .060 inch MLS-5 Headgasket 2001-2004 Avanti II Base $141.00 |
 SHIPS FROM MANUFACTURER C5790-030COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.165 inch Bore .030 inch MLS Headgasket 2001-2004 Avanti II Base $113.55 |
 IN STOCK - LOW C5790-040COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.165 inch Bore .040 inch MLS Headgasket 2001-2004 Avanti II Base $106.95 |
 SHIPS FROM MANUFACTURER C5790-045COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.165 inch Bore .045 inch MLS Headgasket 2001-2004 Avanti II Base $113.55 |
 SHIPS FROM MANUFACTURER C5790-051COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.165 inch Bore .051 inch MLS Headgasket 2001-2004 Avanti II Base $113.55 |
 SHIPS FROM MANUFACTURER C5790-060COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.165 inch Bore .060 inch MLS-5 Headgasket 2001-2004 Avanti II Base $141.00 |
 IN STOCK - LOW C5790-066COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two ... Cometic GM LS1 (w/M.I.D. Sleeves) 4.165 inch Bore .066 inch MLS-5 Headgasket 2001-2004 Avanti II Base $134.40 |
 SHIPS FROM MANUFACTURER 54442MAHLE Original® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe... MAHLE Original Buick Allure 08 Cylinder Head Gasket 2001-2004 Avanti II Base $68.65 |
 SHIPS FROM MANUFACTURER HS5975DMAHLE Original® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe... MAHLE Original Chevrolet Corvette 04-01 Head Set 2002-2004 Avanti II Base $206.95 |