Camshafts
If your not a Cam Engineer then we recommend your cam choice to someone who is.
If you fill out our spec sheet we will get our cam engineer to work out the best camshaft grind for your application.
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Racer Brown Cam Specs
|
Profile |
Effective | Duration |
Valve Lift '@ Zero Lash |
|
| Designation | Duration | @ .050" | Rocker Arm Ratio | |
| 1.5 | 1.6 | |||
| EH-5 | 244 | 192 | .369 | .394 |
| EH-10 | 260 | 206 | .416 | .444 |
| EH-4 | 250 | 200 | .405 | .431 |
| EH-12 | 256 | 202 | .407 | .434 |
| EH-8 | 260 | 214 | .456 | .486 |
| EH-20 | 264 | 220 | .450 | .480 |
| EH-22 | 268 | 222 | .456 | .487 |
| EH-18 | 274 | 224 | .462 | .493 |
| SS-H-45 | 260 | 213 | .417 | .445 |
| ST-2 | 260 | 218 | .450 | .480 |
| SS-H-23 | 270 | 224 | .455 | .485 |
| SS-H-50 | 274 | 222 | .477 | .509 |
| SS-H-51 | 276 | 226 | .474 | .506 |
| ST-14 | 266 | 236 | .486 | .519 |
| SS-H-24 | 274 | 232 | .470 | .501 |
| ST-22 | 276 | 242 | .509 | .543 |
| ST-23 | 278 | 246 | .502 | .56 |
| ST-15 | 280 | 240 | .485 | .517 |
| SS-H-25 | 286 | 238 | .485 | .517 |
| ST-21 | 286 | 254 | .520 | .554 |
| SS-H-44 | 292 | 242 | .510 | .543 |
| ST-8 | 292 | 256 | .445 | .474 |
| ST-12 | 294 | 251 | .480 | .512 |
| SS-H-26 | 296 | 249 | .485 | .517 |
| STX-64* | 286 | 252 | .527 | .562 |
| STX-19M | 294 | 257 | .527 | .562 |
| STX-19M | 296 | 262 | .527 | .562 |
| ST-H-42 | 300 | 254 | .520 | .554 |
| STX-17 | 302 | 264 | .525 | .560 |
| Profile | Effective | Duration | Valve Lift '@ Zero Lash | |
| Designation | Duration | @ .050" | Rocker Arm Ratio | |
| 1.5 | 1.6 | |||
| STX-20 | 302 | 267 | .540 | .576 |
| STX-21M | 304 | 266 | .560 | .597 |
| STX-18** | 306 | 268 | .572 | .610 |
| STX-21M | 306 | 272 | .560 | .597 |
| STX-22 | 310 | 276 | .590 | .629 |
| STX-60** | 310 | 271 | .632 | .674 |
| STX-23m | 312 | 272 | .570 | .608 |
| STX-62** | 312 | 280 | .653 | .697 |
| STX-23 | 314 | 276 | .570 | .608 |
| STX-24 | 318 | 284 | .583 | .621 |
| STX-42 | 320 | 290 | .631 | .673 |
| ST-H-41 | 324 | 272 | .560 | .597 |
| STX-57 | 330 | 291 | .573 | .611 |
| STX-40M | 340 | 300 | .600 | .640 |
| **Must use 1.000" Diameter Mushroom Lifter Any of the above profiles can be combined for dual -profile camshafts when the applications warrant. Sometimes, this is valid, sometimes it isn't. | ||||
| 199-R | 264 | 218 | .579 | .617 |
| 54-R | 270 | 239 | .484 | .516 |
| X-103M | 280 | 240 | .520 | .555 |
| X-103 | 284 | 246 | .520 | .555 |
| X-112 | 288 | 253 | .516 | .551 |
| 82-RM | 292 | 252 | .527 | .562 |
| 77-RM | 294 | 247 | .645 | .688 |
| 82-R | 298 | 262 | .527 | .562 |
| 77-R | 298 | 254 | .645 | .688 |
| 43-RM | 300 | 259 | .519 | .554 |
| Profile | Effective | Duration | Valve Lift '@ Zero Lash | |
| Designation | Duration | @ .050" | Rocker Arm Ratio | |
| 1.5 | 1.6 | |||
| 170-RM | 300 | 256 | .624 | .666 |
| 180-RM | 302 | 253 | .596 | .636 |
| 108-RM | 302 | 262 | .601 | .641 |
| 170-R | 304 | 262 | .624 | .666 |
| 188-RM6 | 304 | 265 | .728 | .777 |
| 108-R | 306 | 263 | .601 | .641 |
| 180-R | 308 | 260 | .596 | .536 |
| 102-RM | 308 | 266 | .623 | .656 |
| 189-RM6 | 308 | 268 | .651 | .692 |
| 102-R | 310 | 272 | .623 | .665 |
| 125-R | 312 | 262 | .631 | .673 |
| 67-RM | 314 | 256 | .604 | .665 |
| 97-RM | 314 | 266 | .635 | .677 |
| 171-R | 314 | 272 | .625 | .667 |
| 178-RM | 315 | 271 | .671 | .713 |
| 97-R | 315 | 272 | .635 | .677 |
| 67-R | 318 | 263 | .604 | .665 |
| 126-R | 322 | 271 | .647 | .699 |
| 140-RM2 | 322 | 278 | .676 | .721 |
| 140-RM6 | 324 | 280 | .676 | .721 |
| 140-R | 324 | 284 | .676 | .721 |
| 146-RM6 | 328 | 283 | .687 | .733 |
| 138-RM4 | 332 | 285 | .631 | .673 |
| 150-RM6 | 332 | 278 | .646 | .690 |
| 146-R | 332 | 286 | .687 | .733 |
| 121-R | 332 | 290 | .701 | .748 |
| 151-R | 334 | 283 | .648 | .692 |
| 138-RM6 | 336 | 288 | .631 | .673 |
| Profile | Effective | Duration | Valve Lift '@ Zero Lash | |
| Designation | Duration | @ .050" | Rocker Arm Ratio | |
| 1.5 | 1.6 | |||
| 138-R | 336 | 291 | .631 | .673 |
| 176-R | 336 | 291 | .729 | .778 |
| 152-R | 340 | 289 | .653 | .697 |
| Profile | Effective | Duration | Valve Lift @ Zero Lash | |
| Designation | Duration | @ .050" | Rocker Arm Ratio | |
| 1.70 | 1.73 | |||
| EH-5 | 244 | 192 | .418 | .426 |
| EH-11 | 244 | 194 | .440 | .447 |
| EH-15 | 256 | 202 | .461 | .470 |
| EH-20 | 264 | 220 | .509 | .518 |
| EH-22 | 268 | 222 | .517 | .526 |
| EH-18 | 274 | 224 | .523 | .532 |
| SS-H-47 | 260 | 218 | .471 | .479 |
| STX-14 | 266 | 236 | .551 | .561 |
| SS-14 | 268 | 230 | .507 | .516 |
| SS-H-62 | 274 | 222 | .541 | .550 |
| SS-19 | 274 | 238 | .481 | .489 |
| SS-H-61 | 276 | 226 | .538 | .547 |
| STX-15 | 280 | 249 | .549 | .559 |
| SS-H-35 | 286 | 238 | .550 | .559 |
| ST-8 | 292 | 258 | .504 | .513 |
| SS-H-36 | 296 | 249 | .549 | .559 |
| STX-32M | 290 | 252 | .544 | .554 |
| STX-48M | 294 | 257 | .597 | .608 |
| STX-48 | 296 | 262 | .597 | .608 |
| STX-27 | 302 | 264 | .595 | .606 |
| STX-31 | 302 | 267 | .612 | .623 |
| Profile | Effective | Duration | Valve Lift @ Zero Lash | |
| Designation | Duration | @ .050" | Rocker Arm Ratio | |
| 1.70 | 1.73 | |||
| STX-43 | 304 | 266 | .635 | .646 |
| STX-44 | 312 | 274 | .646 | .657 |
| ST-H-41M | 320 | 266 | .635 | .646 |
| STX-36 | 324 | 284 | .609 | .620 |
