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...

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...

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...

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...

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...

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