TSEC  CNC 300 LS1-2-6 Heads

 

AFR 205cc. Street $2200 (Racer Net)

ValveLift

 .100 .200 .300 .400 .500 .550 .600 .650 .700 .800

Flow in CFM
In/Ex            

-

 140/112

200/170 251/203 281/221 292/226 298/226

-

-

-

AFR 225cc. Street $2400 (Racer Net)

ValveLift

 .100 .200 .300 .400 .500 .550 .600 .650 .700 .800

Flow in CFM
In/Ex            

-

 150/120

220/178 266/220 304/241 313/246 320/250

-

-

-

 

 CNC 300 LS6 heads are season heads that are CNC ported and rebuilt

 
CNC 300 Stage 2 $1850 (Racer Net) {Without Pipe}

ValveLift

 .100 .200 .300 .400 .500 .550 .600 .650 .700 .800

Flow in CFM
In/Ex            

64/60

 127/112

187/159 240/186 281/200 296/207 307/209

-

310/210

-

 
CNC 300 Stage 3 $2100 (Racer Net) {With Pipe}

ValveLift

 .100 .200 .300 .400 .500 .550 .600 .650 .700 .800

Flow in CFM
In/Ex            

64/62

 127/129

187/179 240/204 282/222 297/226 308/233

-

315/238

-

 

 Stage 3 heads have larger valve seats installed