Gaskets & Seals

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

LSXceleration Gen V L83 L86 LT1 LT4 Water Pump Gasket (Like GM 12657430) Water Pump Gasket 2014 & Up Gen V

Cometic GM LS1 V8 .060" HT Exhaust Header Gasket Set C15193HTS Fits all LS engines Except LS7. Sold as a pair.

Cometic LS 4.200 Bore MLS Head Gasket w/SEG Rings, C15542-051 LS 4.200" Bore. 0.051" Compressed Thickness w/ SEG (Spring Energized Gasket) Rings, 4 Bolt Kit   Extreme Sealing for High Horsepower Forced Induction Applications    The...

Cometic LS 4.150 Bore MLS Head Gasket w/SEG Rings, C15540-051 LS 4.150" Bore. 0.051" Compressed Thickness w/ SEG (Spring Energized Gasket) Rings, 4 Bolt Kit   Extreme Sealing for High Horsepower Forced Induction Applications    The...