GM 6.0L LS LQ4 LQ9 REMANUFACTURED Cylinder Heads 317 Assemblies w/Rocker Arms SET OF 2 Genuine OEM

This is a Pair of Rebuilt OE Stock 6.0L LQ4 / LQ9 Cylinder Head Assembly.* Part # : 317 , 12562319 , 12562317* Description : Stock 6.0L LQ4 / LQ9 LS Series Cylinder Heads Assembly.* Specs : Combustion Chamber Volume: 70.03ccIntake Port Volume: 210ccExhaust Port Volume: 75ccIntake Valve Diameter: 2.00 inchesExhaust Valve Diameter: 1.55 inches * Accessories : Rocker Arms Included are in "Good" Used Condition Remanufacturing Process Includes:- Complete disassembly and thorough cleaning via hot tank & pressure tested to confirm casting integrity- New valve seats installed as necessary- New valve stem seals installed on all our heads & all valve guides are replaced with new ones as necessary.- Valve job Performed with all required angles & vacuum tested seals to ensure perfect compression.- PCD milled to ensure a super smooth finish. (PCD stands for Polycrystalline Diamond, and is best for aluminum heads).- CBN milled to ensure a super smooth finish. (CBN stands for Cubic Boron Nitride and is best for cast-iron heads).- All necessary parts are cleaned and inspected before final assembly to meet AERA specifications***JJ Original Equipment 90-day (Unlimited Miles) Remanufactured Cylinder Head Warranty***

• Complete disassembly and thorough cleaning via hot tank & pressure tested to confirm casting integrity
• New valve seats installed as necessary
• New valve stem seals installed on all our heads & all valve guides are replaced with new ones as necessary.
• Valve job Performed with all required angles & vacuum tested seals to ensure perfect compression.
• All necessary parts are cleaned and inspected before final assembly to meet AERA specifications