LS7 285cc 4.125"+ | Single CNC Cylinder Head

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  • Regular price $ 1,425.00
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  • Utilizes the Gen IV LS7 OEM rockers and accepts LS7 intake manifolds
  • Designed for any new Gen IV short-block with 4.125" bore or larger
  • The 6-bolt design is compatible with GM LSX and RHS Blocks
  • Uses a 2.200" intake valve and 1.600" exhaust valve
  • Has a 285cc intake port
  • Has a deck thickness of .750"
  • 70cc Combustion Chamber Standard

***Due to the thicker deck and higher valve cover rails some beauty covers are not compatible.  When using Corvette (Y-Body) front accessories alternator may need to be clearanced.


Flow Data w/4.125" Bore Plate
Lift Intake Exhaust
0.100 76 65
0.200 163 118
0.300 245 171
0.400 307 212
0.500 350 229
0.600 379 245
0.650 388 247
0.700 395 249

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