Cylinder Head Accessories

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 XF3 Billet Rocker Arm Stand 15-XF3RS Rocker arm stand for LSXceleration XF3 cylinder heads. These will not work with OEM heads. Features: 6061 aircraft grade aluminum Made in the USA       

LSXceleration Inconel 8mm x 1.600 LS Exhaust Valve +0.500 Long   Inconel LS Valve 1.600" Head x 8mm Stem x 5.450" OAL x 0.290" Tip Features: Hardened Stem Tip Ideal for Extreme Duty and Turbo Applications Chrome Plated Stem Fully...

LSXceleration Stainless Steel 8mm x 1.600 LS Exhaust Valve +0.500 Long    Stainless Steel LS Valves 1.600" Head x 8mm Stem x 5.450" OAL x 0.290" Tip Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl...

LSXceleration Stainless Steel 8mm x 2.165 LS Intake Valve +0.500 Long  Stainless Steel LS Valves 2.165" Head x 8mm Stem x 5.450" OAL x 0.290" Tip Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl Polished Undercut...

Chevrolet Performance Coolant Crossover Pipe 12694769 Front cylinder head steam bleed tube. Includes O-rings in the fittings that bolt to the heads.

Chevrolet Performance Steam Crossover Bolt 11588714 6mm x 1.0 x 1.181" UHL

Chevrolet Performance Coolant Air Bleed Plug 12602540

LSXceleration Stainless Steel 8mm x 2.000 LS Intake Valve Set 15-22000-8 Stainless Steel LS Valves 2.165" Head x 8mm Stem x 4.870" OAL x 0.160" Tip x 45 degree seat angle Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl...

LSXceleration Stainless Steel 8mm x 2.165 LS Intake Valve 15-22165-1 Stainless Steel LS Valves 2.165" Head x 8mm Stem x 4.870" OAL x 0.160" Tip Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl Polished Undercut...

Cometic Gen V LT1/4 4.100 Bore MLx Head Gasket C5038-028 Gen V LT1/LT4 4.100" Bore. 0.028" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without...