Small Block Ford Head Flow Data
The following article is broken down into four sections, click on each to link to that section:
1 - Definitions
2 - Cast Iron Head Flow Data
3 - Aluminum Head Flow Data
4 - Cleveland Style Head Flow Data
I have tried to combile many different sources of flow bench data so one could see what they could expect from a given set of heads. As new data becomes available it will be added to the charts. To print --> set your printer for "Landscape mode" (i.e. make it print sideways on a page), this should give you all the data.
Note: all flows are given in cubic feet per minute (cfm) and taken with a port pressure differential of 28" of water
|
Head Casting |
I / E |
Valve Size |
Lift |
Port Configuration |
Source |
|||||||
|
0.100 |
0.200 |
0.300 |
0.400 |
0.500 |
0.600 |
0.700 |
0.800 |
|||||
|
SVO J302 AR |
I |
2.02 |
67 |
128 |
189 |
232 |
263 |
278 |
284 |
- |
Pro Porter |
Super Ford - Sept. 1991 |
|
SVO J302 AR |
E |
1.60 |
51 |
105 |
149 |
184 |
213 |
221 |
227 |
- |
Pro Porter |
Super Ford - Sept. 1991 |
|
SVO J302 AR |
I |
2.02 |
63 |
120 |
165 |
191 |
210 |
210 |
200 |
- |
Stock |
Super Ford - Aug. 1989 |
|
SVO J302 AR |
E |
1.60 |
52 |
104 |
119 |
135 |
140 |
143 |
144 |
- |
Stock |
Super Ford - Aug. 1989 |
|
SVO J302 AR |
I |
2.02 |
62 |
123 |
180 |
220 |
246 |
252 |
253 |
- |
Stage 3 |
Super Ford - Aug. 1989 |
|
SVO J302 AR |
E |
1.60 |
60 |
110 |
161 |
188 |
201 |
204 |
206 |
- |
Stage 3 |
Super Ford - Aug. 1989 |
|
SVO GT40 Aluminum |
I |
1.94 |
64.2 |
114.3 |
166.5 |
199.4 |
212.5 |
217.4 |
- |
- |
Stock |
MM&FF - Aug. 1997 |
|
SVO GT40 Aluminum |
E |
1.54 |
52.3 |
97.7 |
128 |
136.5 |
134.1 |
- |
- |
- |
Stock |
MM&FF - Aug. 1997 |
|
SVO GT40 Aluminum |
I |
1.94 |
64 |
127 |
180 |
190 |
210 |
202 |
- |
- |
Stock |
The Corral Website |
|
SVO GT40 Aluminum |
E |
1.60 |
58 |
108 |
144 |
153 |
156 |
159 |
- |
- |
Stock |
The Corral Website |
|
SVO GT40 Aluminum |
I |
1.94 |
83 |
146 |
204 |
234 |
246 |
250 |
- |
- |
Stage 3 |
The Corral Website |
|
SVO GT40 Aluminum |
E |
1.60 |
80 |
122 |
158 |
188 |
194 |
- |
- |
- |
Stage 3 |
The Corral Website |
|
SVO GT40X Aluminum |
I |
1.94 |
65.2 |
126.7 |
172.5 |
202.5 |
216.0 |
214.8 |
- |
- |
Stock |
Mustang & Ford - Dec. 1999 |
|
SVO GT40X Aluminum |
E |
1.54 |
52.7 |
105.3 |
145.3 |
149.4 |
149.1 |
149.1 |
- |
- |
Stock |
Mustang & Fords - Dec. 1999 |
|
SVO GT40X Aluminum |
I |
1.94 |
65.8 |
129.5 |
181.5 |
222 |
243 |
- |
- |
- |
Stock |
MM&FF - Aug. 1997 |
|
SVO GT40X Aluminum |
E |
1.54 |
62.1 |
109.1 |
147 |
164 |
172.3 |
- |
- |
- |
Stock |
MM&FF - Aug. 1997 |
|
SVO GT40X Aluminum |
I |
1.94 |
54.6 |
107.8 |
159.5 |
197.2 |
217.4 |
227.8 |
234.5 |
- |
Stock |
MM&FF - Jan. 1998 |
|
SVO GT40X Aluminum |
E |
1.54 |
53.1 |
110.2 |
144.7 |
150.3 |
150.4 |
149.4 |
149.7 |
- |
Stock |
MM&FF - Jan. 1998 |
|
SVO GT40X Aluminum |
I |
1.94 |
53 |
113.5 |
169.6 |
206.5 |
225.6 |
230.1 |
- |
- |
Stock |
5.0 Mustang - Feb. 1998 |
|
SVO GT40X Aluminum |
E |
1.54 |
49.9 |
106 |
138.8 |
152.8 |
159 |
160.6 |
- |
- |
Stock |
5.0 Mustang - Feb. 1998 |
|
SVO GT40X Aluminum |
I |
1.94 |
63.4 |
120.9 |
178.4 |
219.7 |
238.9 |
236 |
- |
- |
Street Port Job |
5.0 Mustang - Feb. 1998 |
|
SVO GT40X Aluminum |
E |
1.54 |
53 |
112.3 |
151.3 |
187.2 |
198.1 |
201.2 |
- |
- |
Street Port Job |
5.0 Mustang - Feb. 1998 |
|
TFS Street Heat (Will-Burt) |
I |
2.02 |
66 |
133 |
185 |
213 |
225 |
228 |
229 |
- |
Stock |
Super Ford - Aug. 1989 |
|
TFS Street Heat (Will-Burt) |
E |
1.60 |
58 |
80 |
107 |
122 |
132 |
140 |
144 |
- |
Stock |
Super Ford - Aug. 1989 |
|
TFS Street Heat (Will-Burt) |
I |
1.94 |
65 |
130 |
198 |
241 |
261 |
270 |
275 |
- |
Stage 3 |
MM&FF - Aug. 1997 |
|
TFS Street Heat (Will-Burt) |
E |
1.60 |
54 |
114 |
154 |
182 |
189 |
189 |
189 |
- |
Stage 3 |
MM&FF - Aug. 1997 |
|
TFS Street Heat (Will-Burt) |
I |
2.02 |
66 |
139 |
202 |
240 |
254 |
268 |
272 |
- |
Stage 3 |
Super Ford - Aug. 1989 |
|
TFS Street Heat (Will-Burt) |
E |
1.60 |
61 |
118 |
168 |
196 |
207 |
210 |
212 |
- |
Stage 3 |
Super Ford - Aug. 1989 |
|
TFS Street Heat (Will-Burt) |
I |
2.02 |
72 |
138 |
181 |
207 |
220 |
230 |
- |
- |
Stock |
MM&FF - Feb. 1998 |
|
TFS Street Heat (Will-Burt) |
E |
1.60 |
48 |
78 |
100 |
125 |
135 |
140 |
- |
- |
Stock |
MM&FF - Feb. 1998 |
|
TFS Street Heat (Will-Burt) |
I |
2.02 |
60 |
125 |
185 |
220 |
260 |
275 |
- |
- |
Stage 3 (Hand Ported) |
MM&FF - Feb. 1998 |
|
TFS Street Heat (Will-Burt) |
E |
1.60 |
54 |
80 |
105 |
130 |
160 |
180 |
- |
- |
Stage 3 (Hand Ported) |
MM&FF - Feb. 1998 |
|
TFS Street Heat (Will-Burt) |
I |
2.02 |
60 |
125 |
188 |
230 |
268 |
280 |
- |
- |
Stage 3 (Extrude honed) |
MM&FF - Feb. 1998 |
|
TFS Street Heat (Will-Burt) |
E |
1.60 |
57 |
100 |
140 |
175 |
185 |
190 |
- |
- |
Stage 3 (Extrude honed) |
MM&FF - Feb. 1998 |
|
TFS Twisted Wedge |
I |
2.02 |
63 |
141 |
205 |
233 |
251 |
251 |
- |
- |
Stock |
MM&FF - Aug. 1997 |
|
TFS Twisted Wedge |
E |
1.60 |
53 |
107 |
144 |
171 |
187 |
193 |
- |
- |
Stock |
MM&FF - Aug. 1997 |
|
TFS Twisted Wedge |
I |
2.02 |
67.8 |
132.7 |
199.1 |
240.4 |
252.5 |
243.3 |
- |
- |
Stock |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge |
E |
1.60 |
56.2 |
106.1 |
141.9 |
173.1 |
191.9 |
201.2 |
- |
- |
Stock |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge |
I |
2.02 |
61 |
125 |
187 |
226 |
241 |
- |
- |
- |
Stock - FPS (undercut stems) |
The Corral Website |
|
TFS Twisted Wedge |
E |
1.60 |
58 |
104 |
139 |
166 |
187 |
- |
- |
- |
Stock (undercut stems) |
The Corral Website |
|
TFS Twisted Wedge |
I |
2.02 |
- |
- |
- |
233 |
254 |
254 |
- |
- |
Stock - DSA (undercut stems) |
The Corral Website |
|
TFS Twisted Wedge |
I |
2.02 |
74 |
130 |
188 |
231 |
254 |
256 |
- |
- |
Stage 1 |
Super Ford - May 1999 |
|
TFS Twisted Wedge |
E |
1.60 |
58 |
125 |
156 |
182 |
198 |
212 |
- |
- |
Stage 1 |
Super Ford - May 1999 |
|
TFS Twisted Wedge |
I |
2.02 |
74 |
142 |
198 |
243 |
263 |
264 |
260 |
- |
Stage 2 |
Super Ford - May 1999 |
|
TFS Twisted Wedge |
E |
1.60 |
58 |
126 |
160 |
188 |
209 |
220 |
225 |
- |
Stage 2 |
Super Ford - May 1999 |
|
TFS Twisted Wedge |
I |
2.02 |
- |
130 |
182 |
248 |
271 |
288 |
288 |
- |
Stage 3 |
The Corral Website |
|
TFS Twisted Wedge |
E |
1.60 |
- |
115 |
134 |
160 |
193 |
210 |
- |
- |
Stage 3 |
The Corral Website |
|
TFS Twisted Wedge |
I |
2.05 |
75 |
146 |
203 |
249 |
276 |
289 |
300 |
- |
Stage 3 |
Super Ford - May 1999 |
|
TFS Twisted Wedge |
E |
1.625 |
57 |
126 |
166 |
196 |
216 |
228 |
240 |
- |
Stage 3 |
Super Ford - May 1999 |
|
Air Flow Research 165cc |
I |
1.90 |
- |
123 |
186 |
225 |
250 |
250 |
- |
- |
Stock |
AFR Catalog - 1998 |
|
Air Flow Research 165cc |
E |
1.60 |
- |
118 |
153 |
178 |
185 |
191 |
- |
- |
Stock |
AFR Catalog - 1998 |
|
Air Flow Research 185cc |
I |
2.02 |
- |
129 |
189 |
224 |
267 |
282 |
- |
- |
Stock |
AFR Catalog - 1998 |
|
Air Flow Research 185cc |
E |
1.60 |
- |
118 |
153 |
178 |
185 |
191 |
- |
- |
Stock |
AFR Catalog - 1998 |
|
Avenger |
I |
2.02 |
70.3 |
140.2 |
194.5 |
226.4 |
253.4 |
265.1 |
268 |
271 |
Stock |
FPS Catalog - 1999 |
|
Avenger |
E |
1.60 |
63.4 |
103.4 |
139.7 |
164.2 |
185.9 |
193 |
196.5 |
205.4 |
Stock |
FPS Catalog - 1999 |
|
Avenger |
I |
2.02 |
70 |
150 |
204 |
242 |
262 |
272 |
275 |
- |
Stock |
MM&FF - Jan. 1998 |
|
Avenger |
E |
1.60 |
54 |
102 |
132 |
171 |
190 |
201 |
204 |
- |
Stock |
MM&FF - Jan. 1998 |
|
Brondix Track 1 |
I |
2.02 |
67 |
127 |
173 |
216 |
243 |
253 |
- |
- |
Stage 1 |
Super Ford - May 1999 |
|
Brondix Track 1 |
E |
1.60 |
67 |
111 |
145 |
170 |
190 |
200 |
- |
- |
Stage 1 |
Super Ford - May 1999 |
|
Brondix Track 1 |
I |
2.08 |
73 |
125 |
177 |
229 |
267 |
284 |
298 |
- |
Stage 2 |
Super Ford - May 1999 |
|
Brondix Track 1 |
E |
1.60 |
69 |
118 |
151 |
179 |
201 |
217 |
229 |
- |
Stage 2 |
Super Ford - May 1999 |
|
Brondix Track 1 |
I |
2.08 |
73 |
143 |
200 |
249 |
284 |
308 |
317 |
- |
Stage 3 |
Super Ford - May 1999 |
|
Brondix Track 1 |
E |
1.625 |
64 |
121 |
169 |
200 |
222 |
235 |
252 |
- |
Stage 3 |
Super Ford - May 1999 |
|
Brondix Track 1 |
I |
- |
- |
136 |
194 |
247 |
287 |
312 |
315 |
- |
CNC ported |
M2race Systems |
|
Brondix Track 1 |
E |
- |
- |
115 |
156 |
198 |
214 |
220 |
225 |
- |
CNC ported |
M2race Systems |
|
Edelbrock Performer 5.0 |
I |
1.90 |
72 |
131 |
185 |
214 |
223 |
226 |
- |
- |
Stock |
Edelbrock |
|
Edelbrock Performer 5.0 |
E |
1.60 |
57 |
105 |
131 |
156 |
168 |
175 |
- |
- |
Stock |
Edelbrock |
|
Edelbrock Performer |
I |
2.02 |
70 |
128 |
183 |
219 |
229 |
226 |
- |
- |
Stock |
Edelbrock |
|
Edelbrock Performer |
E |
1.60 |
57 |
104 |
142 |
163 |
172 |
174 |
- |
- |
Stock |
Edelbrock |
|
Edelbrock Victor Jr. |
I |
2.05 |
63.8 |
127.3 |
177.0 |
229.2 |
268.8 |
288.0 |
- |
- |
Stock |
Mustang & Fords - Dec. 1999 |
|
Edelbrock Victor Jr. |
E |
1.60 |
54.1 |
106.8 |
151.6 |
181.5 |
205.0 |
217.5 |
- |
- |
Stock |
Mustang & Fords - Dec. 1999 |
|
Edelbrock Victor Jr. |
I |
2.05 |
64 |
127 |
186 |
234 |
268 |
291 |
285 |
- |
Stock |
Edelbrock |
|
Edelbrock Victor Jr. |
E |
1.60 |
54 |
108 |
140 |
167 |
189 |
195 |
199 |
- |
Stock |
Edelbrock |
|
Edelbrock Victor Jr. |
I |
2.05 |
68 |
120 |
165 |
220 |
262 |
273 |
- |
- |
Stage 1 |
Super Ford - May 1999 |
|
Edelbrock Victor Jr. |
E |
1.60 |
67 |
115 |
148 |
174 |
200 |
208 |
- |
- |
Stage 1 |
Super Ford - May 1999 |
|
Edelbrock Victor Jr. |
I |
2.05 |
72 |
131 |
190 |
240 |
278 |
297 |
290 |
- |
Stage 2 |
Super Ford - May 1999 |
|
Edelbrock Victor Jr. |
E |
1.60 |
70 |
115 |
152 |
179 |
210 |
223 |
230 |
- |
Stage 2 |
Super Ford - May 1999 |
|
Edelbrock Victor Jr. |
I |
2.08 |
75 |
135 |
202 |
245 |
285 |
302 |
315 |
- |
Stage 3 |
Super Ford - May 1999 |
|
Edelbrock Victor Jr. |
E |
1.625 |
72 |
128 |
168 |
201 |
222 |
230 |
239 |
- |
Stage 3 |
Super Ford - May 1999 |
|
Edelbrock 7721 Victor |
I |
2.13 |
64.3 |
135.5 |
198.2 |
248 |
289.2 |
310.4 |
307.4 |
- |
Valve Job Only |
MM&FF - Jan. 1998 |
|
Edelbrock 7721 Victor |
E |
1.63 |
59.7 |
107.5 |
152.7 |
184.2 |
199.8 |
209.3 |
209.3 |
- |
Valve Job Only |
MM&FF - Jan. 1998 |
|
Edelbrock 7721 Victor |
I |
2.13 |
69.2 |
141.1 |
210 |
261.2 |
300.5 |
324.4 |
337.9 |
- |
Basic Port Job |
MM&FF - Jan. 1998 |
|
Edelbrock 7721 Victor |
E |
1.63 |
60.1 |
115 |
160.2 |
192.8 |
217.8 |
232 |
240.2 |
- |
Basic Port Job |
MM&FF - Jan. 1998 |
|
Edelbrock 7721 Victor |
I |
2.13 |
76 |
141 |
203 |
256 |
298 |
323 |
339 |
- |
Bowl blend, port match |
Edelbrock |
|
Edelbrock 7721 Victor |
E |
1.63 |
67 |
110 |
152 |
187 |
210 |
215 |
220 |
- |
Stage 3 |
Edelbrock |
|
TFS Twisted Wedge R |
I |
2.08 |
68 |
147 |
205 |
242 |
275 |
296 |
305 |
- |
Stock |
MM&FF - Aug. 1997 |
|
TFS Twisted Wedge R |
E |
1.60 |
50 |
102 |
146 |
178 |
200 |
212 |
222 |
- |
Stock |
MM&FF - Aug. 1997 |
|
TFS Twisted Wedge R |
I |
2.08 |
66.6 |
128.7 |
190.9 |
239.7 |
270.8 |
281.9 |
297.4 |
284.1 |
Stock |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge R |
E |
1.60 |
53 |
109 |
152.8 |
184.1 |
202.8 |
218.4 |
226.4 |
229.3 |
Stock |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge R |
I |
2.08 |
69.3 |
133.4 |
190.7 |
237.3 |
261.4 |
280.9 |
284.6 |
- |
Valve Job Only |
MM&FF - Jan. 1998 |
|
TFS Twisted Wedge R |
E |
1.60 |
59.2 |
112 |
152.6 |
179 |
198.4 |
214.9 |
225.2 |
- |
Valve Job Only |
MM&FF - Jan. 1998 |
|
TFS Twisted Wedge R |
I |
2.08 |
66.6 |
159.8 |
208.6 |
253 |
286.3 |
308.5 |
321.9 |
319.6 |
Light port work, polish |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge R |
E |
1.60 |
56.1 |
113.8 |
157.5 |
199.7 |
227.7 |
244.9 |
258.9 |
265.2 |
polish only |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge R |
I |
2.08 |
76 |
135 |
190 |
246 |
268 |
279 |
298 |
- |
Stage 1 |
Super Ford - May 1999 |
|
TFS Twisted Wedge R |
E |
1.60 |
67 |
118 |
158 |
174 |
192 |
208 |
219 |
- |
Stage 1 |
Super Ford - May 1999 |
|
TFS Twisted Wedge R |
I |
2.08 |
71.4 |
133.9 |
196.2 |
249.7 |
282.8 |
301 |
308.4 |
- |
Basic Port Job |
MM&FF - Jan. 1998 |
|
TFS Twisted Wedge R |
E |
1.60 |
62.7 |
112.6 |
154.9 |
181 |
201.7 |
214.2 |
224.9 |
- |
Basic Port Job |
MM&FF - Jan. 1998 |
|
TFS Twisted Wedge R |
I |
2.08 |
76 |
141 |
200 |
253 |
277 |
295 |
309 |
- |
Stage 2 |
Super Ford - May 1999 |
|
TFS Twisted Wedge R |
E |
1.60 |
68 |
124 |
160 |
185 |
202 |
220 |
230 |
- |
Stage 2 |
Super Ford - May 1999 |
|
TFS Twisted Wedge R |
I |
2.08 |
66.6 |
162 |
208.6 |
255.3 |
284.1 |
306.3 |
326.3 |
337.4 |
max. porting, chamber modification |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge R |
E |
1.60 |
56.1 |
113.8 |
157.5 |
199.7 |
227.7 |
244.9 |
258.9 |
265.2 |
polish only |
Super Ford - Jan. 1999 |
|
TFS Twisted Wedge R |
I |
2.10 |
78 |
151 |
214 |
265 |
292 |
309 |
327 |
- |
Stage 3 |
Super Ford - May 1999 |
|
TFS Twisted Wedge R |
E |
1.625 |
64 |
121 |
169 |
200 |
222 |
235 |
252 |
- |
Stage 3 |
Super Ford - May 1999 |