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The following article is broken down into four sections, click on each to link to that section:
1 - Cast Iron Head Flow Data
2 - Aluminum Head Flow Data
3 - Cleveland Style Head Flow Data
4 - Definitions
Cleveland Style Head Flow Data
I have tried to compile 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 |
|||||
|
Cleveland 2V |
I |
2.03 |
68.5 |
142.2 |
189.0 |
199.5 |
196.5 |
198.0 |
- |
Stock |
Mustang & Fords - Dec. 1999 |
|
Cleveland 2V |
E |
1.67 |
57.2 |
89.7 |
120.2 |
143.5 |
159.6 |
162.7 |
- |
Stock |
Mustang & Fords - Dec. 1999 |
|
Cleveland 2V |
I |
2.05 |
59 |
114 |
177 |
202 |
204 |
210 |
- |
Stage 3 |
Walden’s Pond Website |
|
Cleveland 2V |
E |
1.65 |
45 |
83 |
117 |
150 |
170 |
179 |
- |
Stage 3 |
Walden’s Pond Website |
|
Cleveland 2V |
I |
2.05 |
- |
- |
- |
- |
220 |
- |
- |
Stage 3 |
Tom Moranna |
|
Cleveland 2V |
E |
1.65 |
- |
- |
- |
- |
180 |
- |
- |
Stage 3 |
Tom Moranna |
|
2V 2.19 / 1.71 |
I |
2.19 |
70 |
139 |
197 |
216 |
216 |
218 |
216 |
Stage 3 |
Walden’s Pond Website |
|
2V 2.19 / 1.71 |
E |
1.71 |
54 |
102 |
142 |
166 |
178 |
181 |
181 |
Stage 3 |
Walden’s Pond Website |
|
Aussie Cleveland 2V |
I |
2.19 |
62 |
119 |
165 |
189 |
198 |
- |
- |
Stock |
www.powerheads.com |
|
Aussie Cleveland 2V |
E |
1.71 |
47 |
84 |
114 |
138 |
162 |
- |
- |
Stock |
www.powerheads.com |
|
Aussie Cleveland 2V |
I |
2.19 |
84 |
163 |
218 |
232 |
252 |
- |
- |
CNC Ported |
www.powerheads.com |
|
Aussie Cleveland 2V |
E |
1.71 |
79 |
116 |
165 |
190 |
212 |
- |
- |
CNC Ported |
www.powerheads.com |
|
Cleveland 4V |
I |
2.19 |
64.3 |
115.8 |
163.5 |
210.0 |
246.0 |
273.6 |
- |
Stock |
Mustang & Fords - Dec. 1999 |
|
Cleveland 4V |
E |
1.67 |
66.7 |
103.7 |
133.8 |
154.4 |
169.0 |
178.4 |
- |
Stock |
Mustang & Fords - Dec. 1999 |
|
Cleveland 4V |
I |
2.19 |
65 |
107 |
162 |
208 |
245 |
267 |
- |
Stock |
Walden’s Pond Website |
|
Cleveland 4V |
E |
1.71 |
50 |
85 |
122 |
145 |
160 |
167 |
- |
Stock |
Walden’s Pond Website |
|
C302B |
I |
2.15 |
- |
156 |
224 |
278 |
306 |
335 |
358 |
Pro Porter |
Super Ford - Sept. 1991 |
|
C302B |
E |
1.65 |
- |
129 |
169 |
200 |
223 |
245 |
256 |
Pro Porter |
Super Ford - Sept. 1991 |
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