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Patriot Performance GM LQ9 Stage III Cylinder Heads 2019

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Cylinder Heads, Stage III, Aluminum, Assembled, 72cc Chamber, 225cc Intake Runner, Chevy, 5.7L, LQ9, Pair

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Patriot Performance GM LQ9 Stage III Cylinder Heads

Part Type: Cylinder Heads
Manufacturer's Part Number: 2019
Part Type: Cylinder Heads
Product Line: Patriot Performance GM LQ9 Stage III Cylinder Heads
Summit Racing Part Number: PAR-2019

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 72
CNC-Machined Combustion Chamber: Yes
Intake Runner Volume (cc): 225cc
Exhaust Runner Volume (cc): 83cc
CNC-Machined Intake Runner: Yes
CNC-Machined Exhaust Runner: Yes
Intake Port Location: Standard
Exhaust Port Location: Standard
Spark Plug Style: Straight
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.080 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.650 in.
Outside Diameter of Outer Spring (in): 1.460 in.
Damper Spring Included: No
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Titanium
Locks Included: Yes
Lock Style: 10 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Positive stop
Rocker Arm Studs Included: No
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: No
Valve Cover Mounting Style: Centerbolt
Accessory Bolt Holes Drilled: Yes
Valve Guides Included: Yes
Valve Guide Material: Manganese bronze intake/Phosphorous bronze exhaust
Valve Seats Machined: Yes
Valve Seat Machine Style: 5-angle
Valve Seat Material: Steel
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold as a pair.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These GM LQ9 Stage III cylinder heads from Patriot Performance are designed for maximum output engine applications, adding a 50+ rear wheel horsepower gain to your engine. These heads feature a 72cc combustion chamber, magnesium bronze intake guides, phosphorus bronze exhaust guides, and 5-angle machine-hardened seats. These heads are great for big cubic inch engines, and blower or nitrous applications.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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