PRC s aftermarket casting LS3 L92 L99 cylinder heads come standard with the following options:

• NEW PRC 13-Degree Valve Angle LS3 Castings
• Improved Piston-to-Valve Clearance For Extra Compression & Larger Camshafts
• Smaller Than Stock Intake Port Volume For Improved Port Velocity
• Stainless Steel Hollow Stem 2.185 Intake Valves & Stainless Steel 1.60 Exhaust Valves
• Integrated Rocker Pedestals
• TSP .660 Spring Kit w PAC Valve Springs & Titanium Retainers
• CHE Bronze Guides
• Completely Assembled in the USA     
• 68cc Chambers

• All PRC cylinder heads are extensively researched and tested. The all-new PRC aftermarket casting LS3 cylinder heads are designed to flow considerably more than a gm ported casting while keeping the port sizes smaller for improved port velocity. The result is a cylinder head that is smaller than a stock GM LS3 port and moves more air than any other ls3 cylinder heads! 

  
  The all new PRC aftermarket casting LS3 heads are the perfect option for customers looking for the ultimate in LS3 L99 L92 cylinder head technology

  
  

  The 13-degree valve angle will allow for the ability to run more compression and larger camshafts thanks to additional piston-to-valve clearance!!  
  
  

  Lift		Intake Flow		Exhaust Flow
  .200		157 cfm		117 cfm
  .300		224 cfm		170 cfm
  .400		279 cfm		205 cfm
  .500		329 cfm		225 cfm
  .600		360 cfm		235 cfm
  .650		372 cfm		240 cfm
  .700		380 cfm		243 cfm

  
  With all PRC cylinder heads, quality and performance are our two highest priorities! In addition to performance, you will not find a better performing set of cylinder heads at this price (cost is for the pair!).

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