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This is a SET OF 2 Rebuilt OE Stock LS 4.8L , 5.3L Cylinder Heads Assemblies.
Part # : 706 , 862 also fits
Description : Stock LS Series 4.8L / 5.3L Cylinder Head. Compatible with LR4 / LM7 / LM4 Engines
Specs : Combustion Chamber Volume: 61.15cc
Intake Port Volume: 200cc
Exhaust Port Volume: 70cc
Intake Valve Diameter: 1.89 inches
Exhaust Valve Diameter: 1.55 inches
Note : Cylinder Head fits Driver and or Passenger Side
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
Jeffrey
Reviewed in the United States on April 13, 2025
I'm actually very upset with the outcome of this product. I spent the whole of yesterday swapping the old heads off of my 02 gmc sierra just for it to have multiple misfires upon startup. Thanks for wasting my time.
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