Small Block Ford Head Flow Data

  1. Introduction
  2. 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.


  3. Cast Iron Heads
  4. 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

    289 Stock

    I

    1.78

    44.9

    91.2

    132.5

    154.5

    168.0

    166.5

    -

    Stock

    Mustang & Fords - December 1999

    289 Stock

    E

    1.45

    41.0

    71.6

    95.1

    110.7

    120.1

    124.8

    -

    Stock

    Mustang & Fords - December 1999

    289 Stock

    I

    1.78

    50

    97

    127

    156

    165

    170

    -

    Stock

    5.0 Magazine - June 1998

    289 Stock

    E

    1.45

    37

    71

    93

    104

    107

    110

    -

    Stock

    5.0 Magazine - June 1998

    289 Ported

    I

    1.88

    60

    119

    162

    185

    190

    192

    -

    Stage 3

    5.0 Magazine - June 1998

    289 Ported

    E

    1.60

    52

    110

    142

    150

    146

    146

    -

    Stage 3

    5.0 Magazine - June 1998

    289 Hi-Po

    I

    1.78

    55.3

    98.8

    139.5

    160.5

    169.5

    177.0

    -

    Stock

    Mustang & Fords - December 1999

    289 Hi-Po

    E

    1.45

    41.4

    71.9

    98.2

    112.6

    121.0

    125.1

    -

    Stock

    Mustang & Fords - December 1999

    DO 351 Stock

    I

    1.84

    58.7

    105.6

    152.0

    171.0

    181.5

    189

    -

    Stock

    Mustang & Fords - December 1999

    DO 351 Stock

    E

    1.54

    51.8

    90.4

    106.8

    112.9

    114.8

    115.4

    -

    Stock

    Mustang & Fords - December 1999

    DO 351 Stock

    I

    1.84

    52

    103

    149

    174

    183

    185

    186

    Stock

    Super Ford - Aug. 1989

    DO 351 Stock

    E

    1.54

    48

    77

    100

    113

    118

    118

    117

    Stock

    Super Ford - Aug. 1989

    DO 351 Stock

    I

    1.94

    -

    120

    182

    219

    225

    228

    -

    Stage 3

    MM&FF - Spring 1984

    DO 351 Stock

    E

    1.60

    -

    99

    135

    144

    150

    153

    -

    Stage 3 (old techniques)

    MM&FF - Spring 1984

    DO 351 Stock

    I

    1.94

    62

    123

    178

    216

    221

    224

    222

    Stage 3

    Super Ford - Aug. 1989

    DO 351 Stock

    E

    1.60

    51

    110

    146

    161

    171

    172

    171

    Stage 3 ("D" port)

    Super Ford - Aug. 1989

    87 - 95 Mustang (E7TE)

    I

    1.78

    59

    114

    144

    156

    156

    156

    -

    Stock

    Super Ford - Sept. 1991

    87 - 95 Mustang (E7TE)

    E

    1.45

    42

    78

    105

    115

    116

    117

    -

    Stock

    Super Ford - Sept. 1991

    87 - 95 Mustang (E7TE)

    I

    1.78

    57

    116

    151

    166

    169

    172

    -

    Home Porter

    Super Ford - Sept. 1991

    87 - 95 Mustang (E7TE)

    E

    1.45

    42

    78

    105

    120

    128

    133

    -

    Home Porter

    Super Ford - Sept. 1991

    87 - 95 Mustang (E7TE)

    I

    1.78

    62

    122

    157

    187

    196

    199

    -

    Pro Porter

    Super Ford - Sept. 1991

    87 - 95 Mustang (E7TE)

    E

    1.45

    51

    84

    113

    129

    139

    142

    -

    Pro Porter

    Super Ford - Sept. 1991

    87 - 95 Mustang (E7TE)

    I

    1.78

    48

    90

    135

    150

    161

    164

    -

    Stock

    The Corral Website

    87 - 95 Mustang (E7TE)

    E

    1.45

    41

    80

    117

    140

    149

    151

    -

    Stock

    The Corral Website

    87 - 95 Mustang (E7TE)

    I

    1.85

    -

    125

    174

    193

    199

    208

    -

    Ported

    The Corral Website

    87 - 95 Mustang (E7TE)

    E

    1.54

    -

    114

    145

    153

    157

    158

    -

    Ported

    The Corral Website

    87 - 95 Mustang (E7TE)

    I

    1.78

    51.8

    94.7

    131.1

    140.9

    153.9

    -

    -

    Stock

    MM&FF - July 1999

    87 - 95 Mustang (E7TE)

    E

    1.45

    39.2

    73.7

    95.7

    103.6

    106.7

    -

    -

    Stock

    MM&FF - July 1999

    87 - 95 Mustang (E7TE)

    I

    1.90

    60.0

    115.4

    164.3

    191.0

    203.0

    -

    -

    CNC Ported

    MM&FF - July 1999

    87 - 95 Mustang (E7TE)

    E

    1.60

    58.9

    103.0

    141.7

    159.1

    164.0

    -

    -

    CNC Ported

    MM&FF - July 1999

    GT40 Cast Iron

    I

    1.84

    54

    107

    157

    183

    192

    196

    -

    Stock

    Super Ford - Sept. 1991

    GT40 Cast Iron

    E

    1.54

    47

    94

    119

    128

    128

    129

    -

    Stock

    Super Ford - Sept. 1991

    GT40 Cast Iron

    I

    1.84

    57

    119

    163

    187

    193

    199

    -

    Home Porter

    Super Ford - Sept. 1991

    GT40 Cast Iron

    E

    1.54

    51

    94

    121

    133

    140

    142

    -

    Home Porter

    Super Ford - Sept. 1991

    GT40 Cast Iron

    I

    1.84

    66

    122

    175

    200

    214

    220

    -

    Pro Porter

    Super Ford - Sept. 1991

    GT40 Cast Iron

    E

    1.54

    53

    115

    148

    181

    188

    191

    -

    Pro Porter

    Super Ford - Sept. 1991

    GT40 Cast Iron

    I

    1.84

    -

    111

    159

    183

    185

    190

    -

    Stock

    The Corral Website

    GT40 Cast Iron

    E

    1.54

    -

    28.5

    125

    129

    129

    -

    -

    Stock

    The Corral Website

    GT40 Cast Iron

    I

    1.84

    -

    115

    166

    193

    208

    210

    -

    Stage 3 (stock valve)

    The Corral Website

    GT40 Cast Iron

    E

    1.54

    -

    101

    142

    172

    174

    173

    -

    Stage 3 (stock valve)

    The Corral Website

    GT40 Cast Iron

    I

    1.94

    98

    156

    207

    225

    237

    242

    -

    Stage 3 (Manley Race Flo Valve)

    The Corral Website

    GT40 Cast Iron

    E

    1.60

    127

    155

    178

    195

    203

    203

    -

    Stage 3 (Manley Race Flo Valve)

    The Corral Website

    GT40P Cast Iron

    I

    1.84

    61

    128

    169

    195

    196

    193

    -

    Stock

    Super Ford - May 1999

    GT40P Cast Iron

    E

    1.46

    52

    90

    123

    135

    139

    142

    -

    Stock

    Super Ford - May 1999

    GT40P Cast Iron

    I

    1.84

    65

    124

    173

    203

    207

    203

    -

    Stage 1

    Super Ford - May 1999

    GT40P Cast Iron

    E

    1.46

    58

    102

    139

    159

    162

    169

    -

    Stage 1

    Super Ford - May 1999

    SVO N351

    I

    2.02

    -

    141

    160

    212

    232

    244

    255

    Stock

    MM&FF - Aug. 1997

    SVO N351

    E

    1.60

    -

    97

    127

    142

    161

    169

    172

    Stock

    MM&FF - Aug. 1997

    SVO N351

    I

    2.02

    64.8

    127.7

    173.2

    210.8

    232.5

    248

    255.3

    Valve Job Only

    MM&FF - Jan. 1998

    SVO N351

    E

    1.60

    49.7

    100.3

    132.9

    148

    155.9

    167.8

    174.6

    Valve Job Only

    MM&FF - Jan. 1998

    SVO N351

    I

    2.02

    63.9

    127.3

    178.6

    217.2

    240.1

    248.4

    256.9

    Bowl Blend

    MM&FF - Jan. 1998

    SVO N351

    E

    1.60

    47.8

    94.8

    140.6

    169.9

    181.2

    186.8

    190

    Bowl Blend

    MM&FF - Jan. 1998


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