Ford Small Block 221-302 1963-1995, 351W
Advertised Duration: 285/291
Duration @ .050": 253/259
Valve Lift w/1.60 Rockers: .683/.683
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
2800-6600. Good mid-range horsepower, rough idle, needs 11.0:1 CR-up.

Ford Small Block 221-302 1963-1995, 351W 1969-96
Advertised Duration: 287/299
Duration @ .050": 255/267
Valve Lift w/1.60 Rockers: .640/.640
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
2900-6800. Strong mid & upper rpm, banked oval track & bracket w/auto trans.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 287/299
Duration @ .050": 255/267
Valve Lift w/1.60 Rockers: .640/.640
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
2900-6800. Mid to upper range horsepower & torque, 11.0:1+ good heads.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 291/295
Duration @ .050": 259/263
Valve Lift w/1.60 Rockers: .624/.656
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
3400-7200. Oval track 1/4-3/8 mile, good mid to upper torque & power, 2bbl. Or 4 bbl. carb.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 291/295
Duration @ .050": 259/263
Valve Lift w/1.60 Rockers: .624/.656
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
3400-7200. Rough idle, bracket E.T., good mid-range, 11.5:1+ CR, 3500+ stall.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 291/299
Duration @ .050": 259/267
Valve Lift w/1.60 Rockers: .683/.672
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
3400-7400. Oval track 3/8-1/2 mile, good mid to upper torque & power, best with 4bbl. carb.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 291/299
Duration @ .050": 259/267
Valve Lift w/1.60 Rockers: .683/.672
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
3400-7400. Bracket pro/super pro, good mid to upper range power, 12.0:1+, 3800+ stall.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 295/299
Duration @ .050": 263/267
Valve Lift w/1.60 Rockers: .683/.672
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
3400-7600. Strong mid & upper range horsepower, 11.0:1+ good heads.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 299/303
Duration @ .050": 267/271
Valve Lift w/1.60 Rockers: .672/.667
Lobe Separation Angle: 106
Intake Centerline: 102
Valve Lash: .022/.022
4200-7800. Competition use, good mid & upper HP, needs good heads & compression.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 299/303
Duration @ .050": 267/271
Valve Lift w/1.60 Rockers: .672/.667
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
4200-7800. Long oval track or bracket E.T. Drag, good upper rpm horsepower, 12.5:1 CR.

Ford Small Block 221-302 1963-1995, 351W 1969-96
Advertised Duration: 301/305
Duration @ .050": 269/273
Valve Lift w/1.60 Rockers: .720/.688
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
4200-8000. Competition use, good mid & upper power.

Ford Small Block 221-302 1963-1995, 351W 1969-96 
Advertised Duration: 299/307
Duration @ .050": 267/275
Valve Lift w/1.60 Rockers: .672/.661
Lobe Separation Angle: 108
Intake Centerline: 104
Valve Lash: .022/.022
4200-8000. Strong upper horsepower, 11.5:1+ good heads & induction, 4500+ stall.