Howards Chev BB Mechanical Roller Camshafts

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Description

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HRC121153-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 249/255 @.050, .663/.680, 110 LC

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 281/287
Duration @ .050": 249/255
Valve Lift w/1.70 Rockers: .663/.680
Lobe Separation Angle: 110
Intake Centerline: 106
3000-7000. Good mid-range horsepower, rough idle. Needs 11.0:1 CR-up.

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HRC120043-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 253/259 @.050, .680/.680 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 285/291
Duration @ .050": 253/259
Valve Lift w/1.70 Rockers: .680/.680
Lobe Separation Angle: 108
Intake Centerline: 104
3200-7000. Lopey idle, pro street/bracket. Great mid-range torque. 10.5-12.0:1 CR, 3400+ stall.

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HRC120043-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 253/259 @.050, .680/.680110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 285/291
Duration @ .050": 253/259
Valve Lift w/1.70 Rockers: .680/.680
Lobe Separation Angle: 110
Intake Centerline: 106
3200-7000. Bracket/pro, good mid-range torque & horsepower. 10.5-12.0:1 CR, 3500+ stall.

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HRC120893-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 255/261 @.050, .680/.703 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 287/293
Duration @ .050": 255/261
Valve Lift w/1.70 Rockers: .680/.703
Lobe Separation Angle: 108
Intake Centerline: 104
3300-7200. Lopey idle, pro/street/bracket. High torque mid-range power. Needs 11.0:1+ CR.

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HRC120893-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 255/261 @.050, .680/.703 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 287/293
Duration @ .050": 255/261
Valve Lift w/1.70 Rockers: .680/.703
Lobe Separation Angle: 110
Intake Centerline: 106
3300-7200. Good mid-range power, rough idle. Needs 11.0:1+ CR. Brackets.

Check for Availability

HRC121633-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 257/263 @.050, .725/.725 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 289/295
Duration @ .050": 257/263
Valve Lift w/1.70 Rockers: .725/.725
Lobe Separation Angle: 108
Intake Centerline: 104
3400-7300. Lopey idle, bracket E.T., high torque mid-range power. 3500+ stall, 11.5:1+ CR.

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HRC121633-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 257/263 @.050, .725/.725 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 289/295
Duration @ .050": 257/263
Valve Lift w/1.70 Rockers: .725/.725
Lobe Separation Angle: 110
Intake Centerline: 106
3400-7300. Fair idle, pro street/strip. Good mid-range power. 3500+ stall, 11.5:1+ CR.

In Stock

HRC121163-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 259/267 @.050, .663/.680 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 291/299
Duration @ .050": 259/267
Valve Lift w/1.70 Rockers: .663/.680
Lobe Separation Angle: 108
Intake Centerline: 104
3400-7200. Lopey idle, bracket E.T. Good mid-range torque. Needs 11.5:1+ CR.

Check for Availability

Will be shipped via: ITEM SHIPS DIRECT FROM MANUFACTURER

HRC121163-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 259/267 @.050, .663/.680 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 291/299
Duration @ .050": 259/267
Valve Lift w/1.70 Rockers: .663/.680
Lobe Separation Angle: 110
Intake Centerline: 106
3400-7200. Lopey idle, bracket E.T. Mid-range torque & power. 11.5:1+ CR, 3500+ stall.

Check for Availability

HRC120473-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 259/269 @.050, .765/.765 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 291/301
Duration @ .050": 259/269
Valve Lift w/1.70 Rockers: .765/.765
Lobe Separation Angle: 108
Intake Centerline: 104
3400-7400. Rough idle, bracket race. Best in 454ci or smaller. 4000+ stall, 11.5:1 CR.

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HRC120473-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 259/269 @.050, .765/.765 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 291/301
Duration @ .050": 259/269
Valve Lift w/1.70 Rockers: .765/.765
Lobe Separation Angle: 110
Intake Centerline: 106
3400-7500. Bracket/pro/super pro, good mid to upper rpm torque/power. 12.0:1+ CR.

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HRC121133-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 261/269 @ .050, .680/.680 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 293/301
Duration @ .050": 261/269
Valve Lift w/1.70 Rockers: .680/.680
Lobe Separation Angle: 108
Intake Centerline: 104
3400-7200. Nice bracket cam, lopey idle, needs higher stall & lower gear.

Check for Availability

Will be shipped via: ITEM SHIPS DIRECT FROM MANUFACTURER

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