Howards Chev BB 65-96 Hyd. Roller (Retro-Fit)

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HRC121905-11

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 233/233 @ .050, .601/.601, 111 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 286/286
Duration @ .050": 233/233
Valve Lift w/1.70 Rockers: .601/.601
Lobe Separation Angle: 111
Intake Centerline: 107
2500-6200 Rough idle, Hot Street. Good usable mid-range power band. 9.5:1+ CR, 2500+ stall.

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HRC122115-12

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 225/235 @ .050, .595/.601, 112 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 278/288
Duration @ .050": 225/235
Valve Lift w/1.70 Rockers: .595/.601
Lobe Separation Angle: 112
Intake Centerline: 108
1800-5600 Mild idle, Street Performance, Great mid-range torque. Headers suggested.

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HRC122115-14

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 225/235 @ .050, .595/.601, 114 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 278/288
Duration @ .050": 225/235
Valve Lift w/1.70 Rockers: .595/.601
Lobe Separation Angle: 114
Intake Centerline: 110
1800-5600 Fair idle, excellent mid-range power. 2500+ stall. Also good w/roots blower, 10psi max.

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Will be shipped via: ITEM SHIPS DIRECT FROM MANUFACTURER

HRC122455-10

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 253/259 @ .050, .680/.680 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 306/312
Duration @ .050": 253/259
Valve Lift w/1.70 Rockers: .680/.680

Lobe Separation Angle: 110
Intake Centerline: 106
3600-6900. Strip/Bracket. 540+ cubic inch with good heads. Great upper mid-range.

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HRC122455-12

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 253/259 @ .050, .680/.680 112 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 306/312
Duration @ .050": 253/259
Valve Lift w/1.70 Rockers: .680/.680

Lobe Separation Angle: 112
Intake Centerline: 108
3600-6900. Strip/Bracket. 540+ cubic inch with good heads. Great upper mid-range.

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HRC122455-14

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 253/259 @ .050, .680/.680, 114 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 306/312
Duration @ .050": 253/259
Valve Lift w/1.70 Rockers: .680/.680
Lobe Separation Angle: 114
Intake Centerline: 110
3600-6900 HP/Bracket, best for 540+. Good upper RPM torque. 11.5:1 CR, 3500+ stall.

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HRC123315-08

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 227/227 @ .050, .555/.555 108 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 280/280
Duration @ .050": 227/227
Valve Lift w/1.70 Rockers: .555/.555

Lobe Separation Angle: 108
Intake Centerline: 104
2000-5600. Mild rough idle, hot street. Should have good exhaust, 2500+ stall & 9.5:1 CR.

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HRC123315-10

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 227/227 @ .050, .555/.555, 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 280/280
Duration @ .050": 227/227
Valve Lift w/1.70 Rockers: .555/.555
Lobe Separation Angle: 110
Intake Centerline: 106
2000-5600 Mild rough idle, Hot Street. Should have good exhaust, 2500+ stall & 9.5:1 CR.

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HRC123335-10

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 253/259 @ .050, .657/.640, 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 306/312
Duration @ .050": 253/259
Valve Lift w/1.70 Rockers: .657/.640
Lobe Separation Angle: 110
Intake Centerline: 106
3600-6900 Lopey idle, Hot Street/Bracket in larger cubic inch. 11.0+ CR, good heads.

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HRC123335-12

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 253/259 @ .050, .657/.640, 112 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 306/312
Duration @ .050": 253/259
Valve Lift w/1.70 Rockers: .657/.640
Lobe Separation Angle: 112
Intake Centerline: 108
3600-6900 Lopey idle, Best in large cubic inch. 11.0+ CR, good heads, 3500+ stall. NOS OK.

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HRC123505-10

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 247/255 @ .050, .680/.680, 110 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 300/308
Duration @ .050": 247/255
Valve Lift w/1.70 Rockers: .680/.680
Lobe Separation Angle: 110
Intake Centerline: 106
3200-6600 Rough lopey idle, Pro Street/Bracket. 3500+ stall, 10.5:1+ CR, good intake & exhaust.

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HRC123505-12

Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chev BB Mark IV 396-502, 247/255 @ .050, .680/.680, 112 LS

Chevrolet BB Mark IV 396-502 1965-1996
Advertised Duration: 300/308
Duration @ .050": 247/255
Valve Lift w/1.70 Rockers: .680/.680
Lobe Separation Angle: 112
Intake Centerline: 108
3000-6600 Rough idle, Pro Street/Strip. Best in larger cubic inch, broad power. 10.5:1+ CR.

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