Gaskets & Seals

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...

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  

LSXceleration Gasket Oil Cooler Adapter Oval Port 14-11384 GM GEN III/IV 4.8L 5.3L 5.7L 6.0L OVAL PORT  

LSXceleration Gasket Oil Cooler Adapter Circle Port 14-03889  GM GEN III/IV 4.8L 5.3L 5.7L 6.0L CIRCLE PORT  

LSXceleration LS Oil Pick Up Tube O-Ring Set 14-2 OE Replacement oil pick up tube o-ring set.  OEM Red O-Ring - Use Green O-Ring OEM Blue O-Ring - Use Black O-ring

LSXceleration LS Thermostat Housing Gasket 14-70307 (Like GM 12570307) Thermostat Housing Gasket 2003-2009 LS Engine.

LSXceleration Gen V L83 L86 LT1 LT4 Thermostat Housing Gasket (Like GM 12620318) Thermostat Housing Gasket 2014 & Up Gen V