AFR’s 235cc “Competition” heads feature 100% CNC ported intake, exhaust   chambers, A356 aluminum castings and high quality components throughout. This head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications). AFR heads are available bare (without parts), call our tech line for details. 

235cc Aluminum SBC Cylinder Heads
Part # Exhaust Port Porting Finish Combustion Chamber
1132-TI Stock Competition 70cc
1130-TI Stock Competition 80cc
1134-TI Spread Port Competition 70cc
1136-TI Spread Port Competition 80cc

 

235cc Competition Flow Chart
  .200 .300 .400 .500 .550 .600 .650 .700 .800
Int 159 221 261 295 311 318 327 331 336
Exh 120 165 214 228 237 238 243 245 250

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