Genuine GM LS3 Cylinder Heads (pair)

       Brand new complete, with valves and springs. 

These will come in original GM boxes BRAND NEW!

     Maintain your piston to valve clearance by using brand new!

     We can also  fit performance valve springs in house at an extra cost if required. (comes with factory springs otherwise) 

Aluminum performance head

• Fits any LS family engine with 4.00" bore or larger
• 2.165" hollow stem intake, and 1.59" solid stem exhaust valves
• .550" max valve lift
• As-cast L92 style 260cc intake ports
• D-shaped exhaust ports
• As-cast combustion chambers

Head 12615871 is assembled with the following components:

• 12569427 Sodium Filled Intake Valves
• 10166344 Valve Spring Retainers
• 12582719 Exhaust Valves
• 12482063 Intake Valve Stem Seals
• 12625033 Valve Springs
• 12482062 Exhaust Valve Stem Seals
• 10166345 Valve Locks

• Here at Malex Motorsports all of our items are in stock in our Sydney based store, ready to ship or pick up.
• NOW IN SMEATON GRANGE!