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. Aluminum 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

    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


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