Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 272/272
Duration @ .050": 224/224
Valve Lift w/1.60 Rockers: .551/.551
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: Hyd./Hyd.
2500-6400. Lopey idle, good low end & mid-range horsepower & torque.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 272/272
Duration @ .050": 224/224
Valve Lift w/1.60 Rockers: .551/.551
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: Hyd./Hyd.
2400-6600. Hot street cams, 4 barrel & headers recommended.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 272/272
Duration @ .050": 224/224
Valve Lift w/1.60 Rockers: .551/.551
Lobe Separation Angle: 112
Intake Centerline: 108
Valve Lash: Hyd./Hyd.
2400-6600. Good idle, good mid-range torque & horsepower. Needs 2400+ stall.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 279/279
Duration @ .050": 225/225
Valve Lift w/1.60 Rockers: .496/.496
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
2400-5700. Needs good intake, 4bbl & headers, best with 9.5+ CR.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 279/285
Duration @ .050": 225/231
Valve Lift w/1.60 Rockers: .496/.512
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: Hyd./Hyd.
2000-6400. Hot street performance in 385-418, 9.5:1, 2400 stall suggested.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 277/282
Duration @ .050": 230/234
Valve Lift w/1.60 Rockers: .563/.572
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: Hyd./Hyd.
2600-6500. Lopey idle, broad power band, strong top end power.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 277/282
Duration @ .050": 230/234
Valve Lift w/1.60 Rockers: .563/.572
Lobe Separation Angle: 110
Intake Centerline: 106
Valve Lash: Hyd./Hyd.
2600-6600. Lopey idle, strong mid-range. Good throttle response, 2400+ stall.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 277/287
Duration @ .050": 230/240
Valve Lift w/1.60 Rockers: .563/.572
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: Hyd./Hyd.
2800-6200. Lopey idle, hot street/brackets, 2500+ stall, 9.0:1+ CR.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 277/287
Duration @ .050": 230/240
Valve Lift w/1.60 Rockers: .563/.572
Lobe Separation Angle: 112
Intake Centerline: 108
Valve Lash: Hyd./Hyd.
2800-6400. Hot street & mild bracket racing.

Ford Small Block 221-302 1963-1995 (Except 302 H.O.)
Advertised Duration: 285/285
Duration @ .050": 231/231
Valve Lift w/1.60 Rockers: .501/.501
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: Hyd./Hyd.
2600-6300. Broad power range, extra performance in smaller engine.