Chevrolet V8 Gen 6 454-502 1996-2000
Premium materials and advanced engineering to deliver unbelievable power. These cams offer significant advantages of additional lift and more power compared to flat tappet designs. The latest in lobe design produces better throttle response and top end horsepower. Designed with fast ramp speeds to give you the most power possible while maintaining the easy maintenance of a hydraulic cam.| Cam Part No. | Cam & Lifter Set Part No. | Duration IN |
Advertised EX |
Duration IN |
@.050" EX |
Valve w/1.70 IN |
Lift Rockers EX |
Lobe Separation Angle | Intake Centerline | Valve IN |
Lash EX |
Notes |
| 120226-12 | NA | 262 | 266 | 209 | 213 | .510 | .527 | 112 | 108 | Hyd. | Hyd. | 1 |
| 1200-4400 | Great daily usage, smooth idle, great fuel economy. | |||||||||||
| 120236-12 | NA | 266 | 274 | 213 | 221 | .510 | .538 | 112 | 108 | Hyd. | Hyd. | 1 |
| 1400-4600 | Good idle, Off-Road & Street Performance. 9.0:1 CR advised. | |||||||||||
| 123516-10 | NA | 272 | 280 | 219 | 227 | .549 | .555 | 110 | 106 | Hyd. | Hyd. | 1 |
| 1600-5000 | Good idle, Performance Street, great low to mid range. Headers suggested. | |||||||||||
| 120246-10 | NA | 278 | 284 | 225 | 231 | .567 | .578 | 110 | 106 | Hyd. | Hyd. | 1 |
| 1800-5400 | Noticeable idle, Street Performance. Should have 2000+ stall, 9.5:1 CR. | |||||||||||
| 120246-12 | NA | 278 | 284 | 225 | 231 | .567 | .578 | 112 | 108 | Hyd. | Hyd. | 1 |
| 1800-5400 | Fair idle, Street & mild Performance usage. Crisp throttle. | |||||||||||
| 122116-12 | NA | 278 | 288 | 225 | 235 | .567 | .601 | 112 | 108 | Hyd. | Hyd. | 1 |
| 1800-5600 | Mild idle, Street Performance, Great mid range torque. Headers suggested | |||||||||||
| 122116-14 | NA | 278 | 288 | 225 | 235 | .567 | .601 | 114 | 110 | Hyd. | Hyd. | 1 |
| 1800-5600 | Fair idle, excellent mid range power. 2500+ stall. Also good w/roots blower, 10psi max. | |||||||||||
| 123316-10 | NA | 280 | 280 | 227 | 227 | .555 | .555 | 110 | 106 | Hyd. | Hyd. | 1 |
| 2000-5600 | Mild rough idle, Hot Street. Should have good exhaust, 2500+ stall & 9.5:1 CR. | |||||||||||
| 120326-08 | NA | 282 | 288 | 229 | 235 | .589 | .601 | 108 | 104 | Hyd. | Hyd. | 1 |
| 2000-5700 | Street/Strip, 10.0:1+ CR, aftermarket dual plane intake recommended. | |||||||||||
| 120326-10 | NA | 282 | 288 | 229 | 235 | .589 | .601 | 110 | 106 | Hyd. | Hyd. | 1 |
| 2000-5800 | Fair idle, Performance usage. Mid-range torque & horsepower. | |||||||||||
| 120326-12 | NA | 282 | 288 | 229 | 235 | .589 | .601 | 112 | 108 | Hyd. | Hyd. | 1 |
| 2000-5800 | Fair idle, Moderate Street/Mild Bracket. Good mid range. 10.0-11.5:1, 2500+ stall. | |||||||||||
| 120256-08 | NA | 284 | 288 | 231 | 235 | .578 | .618 | 108 | 104 | Hyd. | Hyd. | 1 |
| 2400-6000 | Fair idle, Performance usage. Great mid-range torque & power. | |||||||||||
| 120256-12 | NA | 284 | 288 | 231 | 235 | .578 | .618 | 112 | 108 | Hyd. | Hyd. | 1 |
| 2400-6000 | Fair idle, Performance usage. Great mid-range torque & power. | |||||||||||
| 121906-08 | NA | 286 | 286 | 233 | 233 | .600 | .600 | 108 | 104 | Hyd. | Hyd. | 1 |
| 2500-6100 | Rough idle, Performance Street/Mild Strip. Nice mid range. 9.5:1+ CR, 2500+ stall. | |||||||||||
| 121906-11 | NA | 286 | 286 | 233 | 233 | .600 | .600 | 111 | 107 | Hyd. | Hyd. | 1 |
| 2500-6200 | Rough idle, Hot Street. Good usable mid range power band. 9.5:1+ CR, 2500+ stall. | |||||||||||
| 120606-12 | NA | 286 | 300 | 233 | 247 | .600 | .612 | 112 | 108 | Hyd. | Hyd. | 1 |
| 2500-6200 | Mild idle, Hot Street. Great mid range performance. 9.5:1+ CR, 2500+ stall. | |||||||||||
| 120606-14 | NA | 286 | 300 | 233 | 247 | .600 | .612 | 114 | 110 | Hyd. | Hyd. | 1 |
| 2500-6500 | Mild idle, Hot Street. Great mid range performance. Small blower or NOS OK. | |||||||||||
| 120206-12 | NA | 286 | 298 | 233 | 245 | .634 | .635 | 112 | 108 | Hyd. | Hyd. | 1 |
| 2500-6300 | Fair idle, Aggressive Street. Big mid range torque. 9.5:1+ CR, 2500+ stall. | |||||||||||
| 120206-14 | NA | 286 | 298 | 233 | 245 | .634 | .635 | 114 | 110 | Hyd. | Hyd. | 1 |
| 2500-6300 | Fair idle, Aggressive Street. Big mid range torque. Good with 150+ NOS or blower. | |||||||||||
| 120406-08 | NA | 288 | 294 | 235 | 241 | .618 | .618 | 108 | 104 | Hyd. | Hyd. | 1 |
| 2600-6400 | Rough idle, Hot Street/Strip. Great mid range. Needs good heads, 10.0:1+ CR. | |||||||||||
| 120406-10 | NA | 288 | 294 | 235 | 241 | .618 | .618 | 110 | 106 | Hyd. | Hyd. | 1 |
| 2600-6400 | Fair idle, Street/Strip, best in 496-540ci. Nice mid range power. 2600+ stall. | |||||||||||
| 120406-12 | NA | 288 | 294 | 235 | 241 | .618 | .618 | 112 | 108 | Hyd. | Hyd. | 1 |
| 2600-6400 | Rough idle, strong mid-range torque & horsepower. | |||||||||||
| 120266-10 | NA | 290 | 296 | 237 | 243 | .635 | .641 | 110 | 106 | Hyd. | Hyd. | 1 |
| 2600-6500 | Decent idle, Performance Street. Needs 10.0:1+. | |||||||||||
| 120266-12 | NA | 290 | 296 | 237 | 243 | .635 | .641 | 112 | 108 | Hyd. | Hyd. | 1 |
| 2600-6500 | Lopey idle, Hot Street & Bracket Racing. 10.0:1-up CR advised. | |||||||||||
| 120666-10 | NA | 296 | 302 | 243 | 249 | .640 | .640 | 110 | 106 | Hyd. | Hyd. | 1 |
| 2800-6200 | Rough idle, Street/Strip, great upper mid range power. 10.0:1 CR, 3000+ stall. | |||||||||||
| 120666-12 | NA | 296 | 302 | 243 | 249 | .640 | .640 | 112 | 108 | Hyd. | Hyd. | 1 |
| 2800-6300 | Lopey idle, broad mid range power. 10.0:1 CR, 3000+ stall. | |||||||||||
| 121616-12 | NA | 296 | 308 | 243 | 255 | .640 | .640 | 112 | 108 | Hyd. | Hyd. | 1 |
| 3000-6600 | Lopey idle, Excellent mid to top end power. 10.0:1+ CR, 3200+ stall. | |||||||||||
| 121616-14 | NA | 296 | 308 | 243 | 255 | .640 | .640 | 114 | 110 | Hyd. | Hyd. | 1 |
| 3000-6600 | Rough idle, Bracket/Marine Performance. 540+ with 12.5:1 minimum. Auto w/3500+. | |||||||||||
| 129996 | NA | Custom Grind Camshaft Hydraulic Roller Special Order Camshaft. |
Hyd. | Hyd. | 1 | |||||||
Howard Cams, always synonymous with high performance camshafts and valve train innovation, our comments have been top fuel favorites since the early days of drag racing and the basic timing of Howards blown alcohol cams is still used today. All Howards™ Cams use the highest-grade race quality billets available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision cam grinding machines. All Howards™ Cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.
Howard Cams, always synonymous with high performance camshafts and valve train innovation, our comments have been top fuel favorites since the early days of drag racing and the basic timing of Howards blown alcohol cams is still used today. All Howards™ Cams use the highest-grade race quality billets available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision cam grinding machines. All Howards™ Cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.
Howard Cams, always synonymous with high performance camshafts and valve train innovation, our comments have been top fuel favorites since the early days of drag racing and the basic timing of Howards blown alcohol cams is still used today. All Howards™ Cams use the highest-grade race quality billets available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision cam grinding machines. All Howards™ Cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.
