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Patriot Performance GM LS6 Series Stage II Cylinder Heads 2013

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Cylinder Heads, Stage II, Aluminum, Assembled, 64cc Chamber, 225cc Intake Runner, Chevy, 5.7L, LS6, Pair

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Patriot Performance GM LS6 Series Stage II Cylinder Heads

Part Type: Cylinder Heads
Manufacturer's Part Number: 2013
Part Type: Cylinder Heads
Product Line: Patriot Performance GM LS6 Series Stage II Cylinder Heads
Summit Racing Part Number: PAR-2013

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 64
CNC-Machined Combustion Chamber: No
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
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.020 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.570 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.650 in.
Damper Spring Included: No
Number of Springs Per Valve: Single
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
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 LS6 Series Stage II heads from Patriot Performance are CNC-ported, increase the compression on a stock LS6 short block and are a great match for mild or aggressive cam profiles. Ideal for street and strip, these heads supply a good HP gains, and can handle blown or nitrous applications.
* Precision welded combustion chambers.
* Heat treated to OEM specs.
* 5 axis CNC machined.
* Hand detailed and assembled.
* Patriot Stainless Valves
* Bronze Guides
* Patriot Gold .650" Dual Springs
* Titanium Retainers
* 5 Angle Valve Job


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

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