Cleveland Style Head Flow Data

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

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


You may also be interested in . . .

  • The following article is broken down into four sections, click on each to link to that section:

  • The following article is broken down into four sections, click on each to link to that section:

  • The following article is broken down into four sections, click on each to link to that section:

  • Wonder what heads to get? Only want to buy them once? Then you are in the right place. Here is a set of flow numbers from some of the most prominent cylinder head maufacturers for you to compare.

  • The following is compiled data on different transmissions. Some information has not been found yet.

    Transmission Ratings:

  • Text and Photos by Isaac Martin - Originally from Mustang magazine January 1989 edition.

  • c/o = carry over

    Year 1979 1982 1983 1984 1985
    Output - SAE net Horsepower

    Torque