LS1 245cc 4.000"+ | Single CNC Cylinder Head

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  • Regular price $ 1,425.00
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Looking to step up your LS2 engine to the next level?  Mast Motorsports has what you need.  Our LS1 245 Cathedral Port heads are designed to work well with your stock displacement but thrive with stroker kits or boost.  If you want the most out of your LS Engine look no further!


  • Mast Rocker Stands required to run factory LS3 rocker arms
  • Designed for any new Gen IV 6.0L or 6.2L engine including LS3, L99, L92, L76, LY6, LSA, and LS9
  • Perfect for LS2 stroked short blocks
  • Accepts Gen IV LS3 valvetrain, valves, & Cathedral Intake manifolds
  • Uses a 2.165" intake valve and 1.600" exhaust valve
  • 11 Degree Valve angle
  • Has a 245cc intake port
  • Free Drop .226" Intake and .255" Exhaust
  • Has a 70cc combustion chamber standard
  • Has a deck thickness of .750"
  • Cast & Machined in the USA!
Flow Range Intake Exhaust
0.100 71 55
0.200 147 107
0.300 221 155
0.400 278 203
0.500 315 214
0.550 329 222
0.600 335 227
0.650 338 231

 


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