Part#: ALL-20314PC
Condition: Remanufactured - Exceeds OEM Specifications
Manufacturer: Chevrolet
Year Range: 03-09
Engine Size: 5.3L - V8
Description: CNC Ported LM4/LM7 706/862 Cyl Heads .650 Springs 2.00/1.57 Valves PAIR
Upgrade your Chevrolet engine with precision-engineered CNC Ported LM4/LM7 706/862 Cylinder Heads. These remanufactured heads exceed OEM specifications, ensuring top-notch performance for your 5.3L V8 engine (03-09).
Our ALL-20314PC pair of heads come with .650 springs and 2.00/1.57 valves, making them the perfect choice for those seeking enhanced power and efficiency. Whether you're in the market for ported 706 heads, 706 heads with 2.00 valves, or CNC-ported 706 heads, Allied Motor Parts has you covered.
Trust in Chevrolet's quality and our expertise in porting 706 and 862 heads to bring out the best in your engine. Don't miss this opportunity to take your LM4 or LM7 engine to the next level. Upgrade today with Allied Motor Parts CNC Ported Cylinder Heads!
This Cylinder Head has a core charge of $200.00 included in the cost. This charge is FULLY REFUNDED upon return. We will include a prepaid label for the return freight.
ALL Flow data is located in the pictures.
These are CNC-ported heads. They come with the following
New QualCast Stainless Steel Swirl Polished Valves
Intake is 2.00 and Exhaust is 1.57 Valves.
New Qualcast DUAL Springs for up to .650 lift.
New retainers, spring seats and valve seals.
The cylinder head included in this listing will fit the vehicles listed below. It is also important to review / confirm the fitment notes above to assure the vehicle specifics of the head are correct for your application. If you have any question that this may not be the correct head for your vehicle or need help in locating the correct head, please contact us via phone or email prior to making a purchase.