Howards Chev BB Mechanical Roller Camshafts

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HRC121083-14

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 277/285 @.050, .714/.714 114 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 309/317
Duration @ .050": 277/285
Valve Lift w/1.70 Rockers: .714/.714
Lobe Separation Angle: 114
Intake Centerline: 110
4300-8000. Great super-comp. cam. 468+ with 12.5:1 CR-up, OK with NOS.

In Stock

HRC121233-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 277/287 @.050, .737/.737 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 309/319
Duration @ .050": 277/287
Valve Lift w/1.70 Rockers: .737/.737
Lobe Separation Angle: 108
Intake Centerline: 104
4400-8000. Good upper RPM cam in big cubic inch engine with 13.0:1+ CR.

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HRC121233-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 277/287 @.050, .737/.737 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 309/319
Duration @ .050": 277/287
Valve Lift w/1.70 Rockers: .737/.737
Lobe Separation Angle: 110
Intake Centerline: 106
4200-7800. Works great in 496+ CID with high stall. Will work with NOS.

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HRC121233-12

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 277/287 @.050, .737/.737 112 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 309/319
Duration @ .050": 277/287
Valve Lift w/1.70 Rockers: .737/.737
Lobe Separation Angle: 112
Intake Centerline: 108
4000-7600. Great super class cam. Best in 540+ cubic inch. Easy on valve train.

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HRC121233-14

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 277/287 @ .050, .737/.737, 114 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 309/319
Duration @ .050": 277/287
Valve Lift w/1.70 Rockers: .737/.737

Lobe Separation Angle: 114
Intake Centerline: 110
4000-7600. Great Super Class cam. Best in 540+ cubic inch. Easy on valvetrain.

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HRC121683-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 279/287 @.050, .771/.737 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 313/319
Duration @ .050": 279/287
Valve Lift w/1.70 Rockers: .771/.737
Lobe Separation Angle: 108
Intake Centerline: 104
4400-8000. Competition only, needs cubic inch, high CR, stall & gears.

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HRC121683-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 279/287 @.050, .771/.737 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 313/319
Duration @ .050": 279/287
Valve Lift w/1.70 Rockers: .771/.737
Lobe Separation Angle: 110
Intake Centerline: 106
4500-8000. Works great in 496+ CID with high stall. Will work with NOS.

Check for Availability

HRC121623-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 283/287 @.050, .765/.737 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 315/319
Duration @ .050": 283/287
Valve Lift w/1.70 Rockers: .765/.737
Lobe Separation Angle: 108
Intake Centerline: 104
4600-8200. Competition only, needs cubic inch, high CR, stall & gears.

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HRC121623-10

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 283/287 @.050, .765/.737 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 315/319
Duration @ .050": 283/287
Valve Lift w/1.70 Rockers: .765/.737
Lobe Separation Angle: 110
Intake Centerline: 106
4500-8200. Competition only in 500+ CID, needs high CR, stall & gears.

Check for Availability

HRC121623-12

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 283/287 @.050, .765/.737 112 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 315/319
Duration @ .050": 283/287
Valve Lift w/1.70 Rockers: .765/.737
Lobe Separation Angle: 112
Intake Centerline: 108
4400-8200. Competition only in 500+ CID, needs high CR, stall & gears.

In Stock

HRC121623-14

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 283/287 @.050, .765/.737 114 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 315/319
Duration @ .050": 283/287
Valve Lift w/1.70 Rockers: .765/.737
Lobe Separation Angle: 114
Intake Centerline: 110
4800-8000. Competition only in 500+ CID, needs high CR, stall & gears. Good with NOS.

Check for Availability

HRC121093-08

Howards Cams, Steel Billet Mechanical Roller Camshaft, Chev BB Mark IV 396-502, 283/295 @.050, .765/.725 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 315/327
Duration @ .050": 283/295
Valve Lift w/1.70 Rockers: .765/.725
Lobe Separation Angle: 108
Intake Centerline: 104
4800-8500. 540+ ci bracket. Needs good heads, 13.0:1+ CR & high stall.

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