Ford Straight 6 240-300 1964-1996 (10.0” Deck)
Advertised Duration: 259/269

Duration @ .050": 205/215

Valve Lift w/1.60 Rockers: .448/.475

Lobe Separation Angle: 112

Intake Centerline: 108
600-4500. Street Force™ 1, Good idle, mild street performance, strong low end torque.

Ford Straight 6 240-300 1964-1996 (10.0” Deck)
Advertised Duration: 263/263
Duration @ .050": 209/209
Valve Lift w/1.60 Rockers: .448/.448
Lobe Separation Angle: 108
Intake Centerline: 104
1200-4800. Good idle, street, off-road, towing. Good torque.

Ford Straight 6 240-300 1964-1996 (10.0” Deck)
Advertised Duration: 267/267
Duration @ .050": 213/213
Valve Lift w/1.60 Rockers: .480/.480
Lobe Separation Angle: 110
Intake Centerline: 106
1600-5000. Strong low & mid-range torque & horsepower.

Ford Straight 6 240-300 1964-1996 (10.0” Deck)
Advertised Duration: 275/275
Duration @ .050": 221/221
Valve Lift w/1.60 Rockers: .501/.501
Lobe Separation Angle: 110
Intake Centerline: 106
2000-5800. Nice idle, good low & mid-range horsepower. Needs good exhaust.