This is a Pair of Rebuilt OE Stock 4.3L / 262 Vortec Cylinder Head Assemblies.
* Casting # : 12629344
* Description : 2 Vortec 4.3L / 262 Aluminum Cylinder Heads w/ rocker arms for 2014-2020 Silverado / Sierra
* Note : rocker Arm Assembly included
**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