GM Chevrolet GMC 4.8L 5.3L Cylinder Heads 706 / 862 Assembly Set/Pair

  **Rolling Automotive is an Auto Parts Supplier for the Automotive Industry. We** **Specialize in both Domestic & Foreign Replacement Parts.** > **Contents : 2 - Stock LS Series 4.8L / 5.3L Cylinder Heads that Are Compatible With LR4 LM7 LM4 Engines.** > **Manufacture : GM** > Part # : 706 Also Replaces 862 > > Information : Does not come with rocker arms > **Condition: Reman** > _**\\* 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** > - **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** > #### SHIPPING > > **All of our product is stocked in our warehouse ready to be shipped out.

• Description: Chevrolet GMC LS LR4 LM7 LM4 CYLINDER HEADS
• Items Included: DOES NOT COME WITH ROCKER ARMS
• Manufacturer Part Number: 706 / 862
• Material: Aluminum
• Superseded Part Number: 12561706, 12578925
• Brand: GM
• Type: LS Series
• Interchange Part Number: 12559862
• Country Manu: Canada
• Manufacturer Warranty: 60 Days
• OE/OEM Part Number: 706 / 862
• Country of Origin: United States
• Finish: Clean