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ShopChevrolet-Pontiac-GMC98-02 Camaro-Firebird V8Engine & ValvetrainCylinder Heads → PRC LS3 Aftermarket 6-Bolt 255cc CNC Cylinder Heads
PRC LS3 and L92 CNC Ported Heads


PRC LS3 and L92 CNC Ported Heads

PRC LS3 Aftermarket 6-Bolt 255cc CNC Cylinder Heads

base price $2,399.99
item# 199-PRCLS36B255
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All Precision Race Components (PRC) cylinder heads come fully CNC-ported and machined using state-of-the-art technology!

Click Here to SEE why we build better heads!

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 2.170" Intake, 1.60" Exhaust Valves
  • Billet Rocker Pedestals
  • .675" Spring Kit Standard
  • Completely Assembled and Milled to Your Specifications
  • 60-68cc Chambers
  • Available Milled Down To 65cc Chambers While Still Keeping Better Than Stock P/V!!
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 PRC aftermarket casting LS3 cylinder heads are available in 2 different configurations: 

  • 255cc Runners for max effort stock cube LS2/LS3/L99/L92 engines looking for a 370cfm cylinder head that can be aggressively milled & still keep better than stock p/v
  • 260cc Runners For LS3/L99/L92 stroker engines needing a 380cfm+ cylinder head!
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"

 281 cfm

205 cfm

 .500"

 329 cfm

 225 cfm

 .600"

 358 cfm

 235 cfm

 .650"  366 cfm  240 cfm
 .700"  369 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!). Call one of our sales consultants today if you have any questions or if you would like to discuss your specific application. 




*Spring Kit  
*Chamber Size  
*Select Intake Valves  

Base Price: $2,399.99
Customized Price: $2,399.99

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Related Tags: 1   1.0   2.5   205cc   215cc   225cc   227cc   230cc   235cc   237cc   245cc   247cc   265cc   285cc   3   3.9"-4"   400+CFM   5.3L   6.0L   62cc  
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