This is a SET of Rebuilt OE Stock 4.3L / 262 Vortec Cylinder Head Assemblies.
* Part # : 12557113 , also fits 113
* Description : Stock Vortec 4.3L / 262 Cylinder Heads 96-2005
* Note : BDR (bolt down rocker) Arm Assembly
**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
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