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SBF Head Flow Numbers

This is a listing of most of the popular small block heads and their flow data.  This was sent to me via e-mail quite a while back so I have no idea who to give credit for on this list.

 

Head Type Intake Valve Exhaust Valve Int .100 Int .200 Int .300 Int .400 Int .500 Int .600 Exh .100 Exh .200 Exh .300 Exh .400 Exh .500 Exh .600
2.3L Turbo 1.74 1.50 65.2 98.5 130.7 157.1 173.2   60.7 87.5 108.8 127.5 140.2  
2.3L Powerhead 1.88 1.59 78.3 118.7 161 201 222.5   73.5 107 133.2 155.1 178.6  
289 Hi Perf. 1.78 1.45 55.3 98.8 139.5 160.5 169.5 177 41.1 71.9 98.2 112.6 121 125.1
289 Standard 1.78 1.45 44.9 91.2 132.5 154.5 168 166.5 41 71.6 95.1 110.7 120.1 124.8
351C 2bbl 2.03 1.67 68.5 142.2 189 199.5 196.5 198 57.2 89.7 120.2 143.5 159.6 162.7
351C 4bbl 2.19 1.71 64.3 115.8 163.5 210 246 273.6 66.7 103.7 133.8 154.4 169 178.4
351C PwrHead 2.19 1.71 65.7 124 178.9 211.0 226.4   54.6 87.3 124.2 155.1 168.5 180.2
351W 4bbl Ported 1.94 1.6 62 123 178 216 221 224 51.8 110 146 161 171 172
3.8L Coy Miller Stage 2 1.85 1.625 56.3 112.7 163.9 199 215.5 224.5 49.9 103.2 144 183.6 201.5 207.9
3.8L Supercharged 1.78 1.46 51.6 81.5 110.6 144.3 169.6 181 40.1 71.4 95.3 113.4 122.5 127.3
351W 4bbl 1969 1.84 1.54 58.7 105.6 152 171 181.5 189 51.8 90.4 106.8 112.9 114.8 115.4
AFR 165cc (Windsor) 1.90 1.60   123 186 225 250 250   118 153 178 185 191
AFR 185cc (Windsor) 2.02 1.60   129 189 224 267 282   118 153 178 185 191
Avenger (Windsor) 2.02 1.60 70.3 140.2 194.5 226.4 253 265.1 63.4 103.4 139.7 164.2 185.9 193
Brodix Neal 200 2.12 1.625   121.1 188.4 251.2 302.6 329.7   80.5 122.4 156.2 185.1 204.5
Brodix Track 1 2.08 1.60 62 115 167 211 246 269 57 93 136 160 177 186
Canfield 2.05 1.69 75 142 202 250 286 312 76 137 185 210 230 243
World Windsor Sr. 2.02 1.60 61.7 125.1 163.1 198 220.1   52 99.1 122 138.1 151  
World Windsor Jr. 1.94 1.60 54 105 141 170 186 195 47 101 125 140 148 154
SVO E351 2.02 1.60   126 177 213 232 244   93 115 126 144 149
E7TE-AA Stock 1.78 1.46 55.4 101.3 140.9 150.8 164.6   42 78.9 102.4 110.8 114.2  
E7TE-AA Pwrhead 1.90 1.60 64.2 123.4 175.8 204.3 217.2   63.0 110 151.6 170.2 175.5  
Edelbrock Performer 5.0L 1.90 1.60 72 131 185 214 223 226 57 105 131 156 168 175
Holley Systemax 1.94 1.6 60 119 166 202 219 228 57 95 126 152 166 176
Edelbrock Victor Jr. 2.05 1.60 63.7 127.3 177 229.2 268.8 288 54.1 106.8 151.6 181.5 205 217
Edelbrock Victor 2.125 1.625 64.3 135.5 198 248 289.2 310 59.7 107.5 152.7 184.2 199.8 209.3
Kent 1.6L Formula 1.56 1.34 47 90.8 127.9 138.4 143.6 146.2 39.3 76 103.1 117.3 121.3 122.3
GT-40 Cobra stock 1.84 1.54 54 107 157 183 192 196 47 94 119 128 128 129
GT-40P Explorer 1.84 1.46 61 128 169 195 196 193 52 90 123 135 139 142
GT-40X FRP 1.94 1.54 65.2 126.7 172.5 202.5 216 214.8 52.7 105.3 145.3 149.4 149.1 149.1
GT-40Y FRP 1.94 1.54 64 114 167 199 213   52 98 128 137 134  
J302 FRP 2.02 1.60 63 120 165 191 210 210 52 104 119 135 140 143
N302 Sportsman FRP 2.02 1.60   141 160 212 232 244   97 127 142 161 169
Cobra Jet 460 SVO 2.25 1.75 63.4 120.7 181 240 274 292 41.5 92 133 165 176 181
TFS R Stage 3 Porting 2.10 1.625 78 151 214 265 292 309 64 121 169 200 222 235
TFS R Unported 2.08 1.60 66.6 128.7 190.9 239.7 270.8 281.9 53 109 152.8 184.1 202.8 218.4
TFS Street Heat 2.02 1.60 72 138 181 207 220 230 48 78 100 125 135 140
TFS Twisted Wedge 2.02 1.60 67.8 132.7 199 240 252.5 243.3 56.2 106.1 141.9 173.1 191.1 201.2
Track 1 Mild Port 2.02 1.60 67 127 173 216 243 253 67 111 145 170 190 200
Dominion 5.0L DOHC 1.65 (2) 1.40 (2) 105 196 272 321 337 344 82 144 190 220 244 256
4.6L PI 2V 1999 1.75 1.41   115 148 166 175     103 128 143 156  
4.6L FRPP 1.84 1.41   142 181 196 213     100 131 150 150  
4.6L DOHC 1998 1.46 (2) 1.18 (2) 95.7 167 223 244 248 250
4.6L DOHC 1999-00     92.7 161 203 221 229 230
4.6L DOHC Threshie 1.46 (2) 1.18 (2) 119 202 263 297 315 324 111 182 230 245 252 255
Yates SB Ford Head

CNC Ported

    88.6 165.2 248.7 308.6 351.4 368.0 73.7 128.9 169.7 210.9 253.8 265.3
Blue Thunder SB Ford

Out Of Box

2.15 1.625 83.9 160.5 236.1 292.7 332.4 360.9 71.3 130.5 168.1 192.8 214.2 224.1
Brodix FO100 SB Ford 2.08 1.60 64.9 124.4 182.9 221.2 234.8 238.9 56.2 96.7 131 157.6 176.6 188.1
All Figures @ 28"of H2O