2003 Avanti II Parts

Performance parts and accessories that fit your 2003 Avanti II. Shop Cometic Gasket, COMP Cams, King Engine Bearings and more. Every part is checked against your vehicle before it ships.

• Cometic GasketCometic GM LS Gen-3/4 Small Block V8 Oil Pan Gasket (Except LS1/LS6 Corvette) - 10 PackMPN cgsCP5173$305.24In stock
• Cometic GasketCometic GM LS Gen-3/4 Small Block V8 .080in MLS Cylinder Head Gasket-Bore 4.125inMPN cgsC5789-080$152.26In stock
• Cometic GasketCometic GM LS1 SB 4.100in Bore .080in MLS-5 Head GasketMPN cgsC5489-080$132.59In stock
• COMP CamsCOMP Cams GM LS Engine Billet Aluminum Valve CoversMPN cca291$619.95In stock
• King Engine BearingsKing Engine Bearings High Performance Cam Bearing Set - CoatedMPN kingCS5503HPT$283.55In stock
• COMP CamsCOMP Cams Cam & Lifter Kit LS1 XR265HRMPN ccaCL54-412-11$595.95In stock
• COMP CamsCOMP Cams Cam & Lifter Kit LS1 XR269HRMPN ccaCL54-414-11$595.95In stock
• Cometic GasketCometic Header Bolts M8 - 1.25 x 25mm Grade 5 Carbon Steel w/ Compact Head & Black Oxide FinishMPN cgsCF1013$13.64In stock
• COMP CamsComp Cams Shim, Xd-A Pushrod .112In ThickMPN cca4124-112-16$32.95In stock
• Cometic GasketCometic GM Gen-3/4 Small Block V8 Coolant Bypass SealsMPN cgsC15034$6.25In stock
• Cometic GasketCometic GM LS1 SB 3.910in Bore .051 thick MLS Head GasketMPN cgsC5475-051$87.95In stock
• King Engine BearingsKing Chevrolet SBC 307ci / 350ci and Gen III / IV Connecting Rod Bearing Set (Set of 8)MPN kingCR807XPNCSTDX$257.95In stock
• FASTFAST Intake Manifold, Rhs Sheet Met Al, Ls Cathedral Port, Black W/ Fuel Rail KitMPN fst10902$649.95In stock
• King Engine BearingsKing Engine Bearings 06-13 GM LS .775in Wide Cam Bearing SetMPN kingCS5171BB$73.00In stock
• EdelbrockEdelbrock Chevy LS V8 Sure Seat Valve SpringsMPN ede5768$345.95In stock
• Cometic GasketCometic GM LS1 SB 4.130 inch Bore .080 inch MLS-5 Head GasketMPN cgsC5317-080$132.59In stock
• Granatelli Motor SportsGranatelli 96-22 GM LS Tall Valve Cover w/Integral Angled Coil Mounts - Cast FinishMPN gms640360$219.95In stock
• Cometic GasketCometic GM LS1 SB 3.910 inch Bore .075 inch MLS-5 Head GasketMPN cgsC5475-075$121.04In stock
• Victor ReinzMAHLE Original Buick Allure 08 Oil Pan SetMPN vicOS32241$90.63In stock
• COMP CamsComp Cams Shim, Xd-A Pushrod .064In ThickMPN cca4124-064-16$32.95In stock
• King Engine BearingsKing GM 294/325/345/364CI 4.8/5.3/5.7/6.0L L20/LS1/LS2/LS4/LS6 (Size 040) Main Bearing SetMPN kingMB5293SI 040$94.20In stock
• Victor ReinzMAHLE Original Chevy LS Rear Main Seal SetMPN vicJV1657$72.76In stock
• COMP CamsCOMP Cams Camshaft LS1 285Lr HR-113MPN cca54-460-11$404.95In stock
• King Engine BearingsKing GM 294/325/345/364CI 4.8/5.3/5.7/6.0L L20/LS1/LS2/LS4/LS6 (Size 020) Main Bearing SetMPN kingMB5293SI020$92.90In stock