Patriot Heads for your 2007-2013 Chevy Truck / SUV

Patriot Performance CNC Ported Stage II/III Heads


for your 2007-2013 Chevy Truck / SUV

When we decided to sell Aftermarket Performance cylinder head the decision was easy! When performance counts, Patriot Performance Stage II / III CNC-ported cylinder heads for the LS (LQ9) TRUCK 5.3 / 6.0 / 6.2L series engines. Patriot Performance LS (LQ9) TRUCK 5.3 / 6.0 / 6.2L Series heads come fully assembled and can handle blown or nitrous applications.


These LS (LQ9) TRUCK 5.3 / 6.0 / 6.2L Series Engines heads feature several combustion chamber choices; Custom 5 axis CNC machined new GM castings make these heads a must have for any performance oriented GM LS series engine. These heads provide up to a 80 cfm improvement over stock OEM versions. Your choice of combustion chambers will increase the compression on a stock LS1 from 10-1 to 10.5-1. Based on other modifications, gains of up to 80 rwhp can be expected. These are a great choice for any naturally aspirated engines and applications where nitrous, supercharger and blower systems are used. The Stage II / III heads feature stainless steel valves, Patriot Gold Dual .650" Lift springs, titanium retainers, Super 7 machined locks, custom honed bronze guides, machined spring bases, and viton rubber seals. *Sold as Pair

Patriot Stage II Cylinder Heads

Features:

  • RPM Outlet EXCLUSIVE!
  • Tested Reman Castings
  • Custom 5 axis CNC ported
  • Custom 5 Angle Valve Job
  • Stainless Steel, undercut intake valves
  • Stainless Steel, undercut exhaust valves
  • Custom honed bronze guides
  • Dual .650" Lift springs
  • Titanium Retainers
  • Super 7 machined locks
  • Double "Triple B" Springs
  • No Exchange Required
  • *Sold as Pair

Technical Specs:

  • Combustion Chamber: 72cc
  • Intake Runner: 227cc
  • Exhaust Runner: 70cc
  • Intake Valve: 2.02-or-208″
  • Exhaust Valve: 1.57-or-160″
  • Max. Valve Spring Lift: 0.650″
  • Spring Pres. Closed: 135 lbs. @ 1.800″
  • Spring Pres. Open: 375 lbs. @ 1.090″
  • Retainer Material: Titanium
  • Valve Seal Material: Viton
  • Valve Guide Material: Manganese Bronze
  • Valve Job: 5-angle


PROMAXX Patriot Performance GM LQ9 Castings


72cc Stage II Heads


Vehicle:
2007-2009 GM LQ9 Trucks


Features:

  • Fully Assembled
  • 650" Lift Springs
  • Titanium Retainers
  • 21-4N Stainless Steel High-Flo valves
  • 2.02″ Intake Valves
  • 1.57″ Exhaust Valves
  • 5 Axis CNC Ported - Polished Heads
  • Built to Order Allow 3-4 Weeks
  • Sold As Pair
  • Not Legal For Sale Or Use In California


PROMAXX Patriot Performance GM LQ9 Castings


72cc Stage III Heads


Vehicle:
2007-2009 GM LQ9 Trucks


Features:

  • Fully Assembled
  • 650" Lift Springs
  • Titanium Retainers
  • 21-4N Stainless Steel High-Flo valves
  • 2.08″ Intake Valves
  • 1.60″ Exhaust Valves
  • 5 Axis CNC Ported - Polished Heads
  • Built to Order Allow 3-4 Weeks
  • Sold As Pair
  • Not Legal For Sale Or Use In California