Gaskets & Seals

LSXceleration GM LS3 MLS 5-Layer Head Gasket Set 14-10046-2 4.094" (104mm) bore x .052" (1.33mm) thickness x 5-layer MLS. Same as Chevrolet Performance 12610046.    

LSXceleration Build Your Own Gasket Kit 14-30000  4.8/5.3/5.7/6.0/6.2L LS  Build your own gasket kit for LS 4.8/5.3/5.7/6.0/6.2L. Select the gaskets that correspond with your engine. Feel free to call us for help!

LSXceleration Gen V L83 L86 LT1 Intake Manifold Gaskets 14-26354 Replacement intake port seal for Gen V L83, L86, LT1 engines. Sold as a set of 8.

LSXceleration Gen V L83 L86 LT1 LT4 Valley Cover Gasket 14-23104 Engine Valve Lifter Oil Manifold Gasket

LSXceleration Gen IV LS Valley Cover Gasket Kit 14-10141 Kit Includes: Valley Cover Gasket AFM/DOD O-Ring Seals VVT Phaser Gasket

Cometic GM LS Valve Cover Gaskets C15245 All Gen 3 & Gen 4 LS Engines with center bolt valve covers.

Cometic Gen V LT1/4 4.150 Bore MLx Head Gasket C15203-040 Gen V LT1/LT4 4.150" Bore. 0.040" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without...

Cometic LS 4.000 Bore MLS Head Gasket C5477-045 LS 4.000" Bore. 0.045" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed outer layers of...

LSXceleration Gen III Valley Cover Gasket w/ Knock Grommets 14-58178G Steel Elastomer material. Like GM 12558178. Includes 2 knock sensor grommets.  

Cometic Dart LS Next 4.200 Bore MLx Head Gasket C15363-040, Left Side Dart LS Next 4.200" Bore. 0.040" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder...

Cometic Dart LS Next 4.200 Bore MLx Head Gasket C15362-040, Right Side Dart LS Next 4.200" Bore. 0.040" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder...

LSXceleration Gen V L83 L86 LT1 Fuel Injector O-Ring Kit 14-72367-8 Fuel Injector O-Ring Kit