Ford Small Block 351W 1969-1996Advertised Duration: 265/265Duration @ .050": 230/230Valve Lift w/1.60 Rockers: .512/.512Lobe Separation Angle: 110Intake Centerline: 106Valve Lash: .022/.0222200-5800. Good street cam, broad power range, 2200+ stall recommended.
Ford Small Block 351W 1969-1996Advertised Duration: 258/264Duration @ .050": 230/236Valve Lift w/1.60 Rockers: .561/.574Lobe Separation Angle: 108Intake Centerline: 104Valve Lash: .018/.0182000-5600. Fair idle, good low to mid-range performance, 9.5:1+ CR, 2500+ stall.
Ford Small Block 351W 1969-1996Advertised Duration: 264/268Duration @ .050": 236/240Valve Lift w/1.60 Rockers: .574/.590Lobe Separation Angle: 108Intake Centerline: 104Valve Lash: .018/.0182400-6000. Street/strip, high torque with mid-range & top end power, 2500+ stall.
Ford Small Block 351W 1969-1996Advertised Duration: 275/281Duration @ .050": 240/246Valve Lift w/1.60 Rockers: .539/.555Lobe Separation Angle: 106Intake Centerline: 102Valve Lash: .022/.0222600-6200. Hot street/brackets, lopey idle, needs higher CR & gears.
Ford Small Block 351W 1969-1996Advertised Duration: 275/281Duration @ .050": 240/246Valve Lift w/1.60 Rockers: .539/.555Lobe Separation Angle: 108Intake Centerline: 104Valve Lash: .022/.0222600-6200. Hot street/bracket, needs 10.0+ CR, 3200+ stall & gears.
Ford Small Block 351W 1969-1996Advertised Duration: 275/281Duration @ .050": 240/246Valve Lift w/1.60 Rockers: .539/.555Lobe Separation Angle: 112Intake Centerline: 108Valve Lash: .022/.0222500-6300. Fair idle, bracket E.T. Good mid-range torque & power, 11.0:1+ CR, 3500+ stall.
Ford Small Block 351W 1969-1996Advertised Duration: 279/279Duration @ .050": 244/244Valve Lift w/1.60 Rockers: .544/.544Lobe Separation Angle: 108Intake Centerline: 104Valve Lash: .022/.0222600-6400. Rough idle, super mid-range performance, needs 11.0:1 CR-up.
Ford Small Block 351W 1969-1996Advertised Duration: 272/280Duration @ .050": 244/252Valve Lift w/1.60 Rockers: .501/.501Lobe Separation Angle: 106Intake Centerline: 102Valve Lash: .016/.0162800-6800. Oval track, .500" lift rule, best on tight short tracks, low vacuum.
Ford Small Block 351W 1969-1996Advertised Duration: 281/287Duration @ .050": 246/252Valve Lift w/1.60 Rockers: .549/.565Lobe Separation Angle: 106Intake Centerline: 102Valve Lash: .022/.0222800-6800. Fair idle, street/strip in light car, 10.0:1 CR, 4.10 or lower gears.
Ford Small Block 351W 1969-1996Advertised Duration: 283/283Duration @ .050": 248/248Valve Lift w/1.60 Rockers: .544/.544Lobe Separation Angle: 108Intake Centerline: 104Valve Lash: .022/.0223000-7000. Street/strip, powerful through entire rpm range.
Ford Small Block 351W 1969-1996Advertised Duration: 278/284Duration @ .050": 250/256Valve Lift w/1.60 Rockers: .501/.501Lobe Separation Angle: 106Intake Centerline: 102Valve Lash: .016/.0163200-7200. Oval track, .500" lift rule, 1/4 to 3/8 mile.
Ford Small Block 351W 1969-1996Advertised Duration: 278/284Duration @ .050": 250/256Valve Lift w/1.60 Rockers: .501/.501Lobe Separation Angle: 108Intake Centerline: 104Valve Lash: .016/.0163200-7200. Oval track, .500" lift rule, 1/4 to 3/8 mile 4bbl, good mid-range torque, 11.0-12.5:1 CR.