|
|
SUMMIT RACING
800.230.3030
summitracing.com The Edelbrock Performer RPM heads had excellent flow numbers, and they provided exceptional power and torque during our dyno testing. At 3,900 rpm these heads produced 491 lb-ft peak torque and 452 peak horsepower at 5,500 rpm, making them a great choice for many mild-to-medium street-performance engines. | CATEGORY 1 | | MODEL: | Edelbrock Performer RPM aluminum, 170cc | | PN: | 60899 | | PRICE: | $999/pair | | Weight: | 27 pounds each | | True measured combustion chamber volume: | 64 cc | | True measured intake and exhaust port volume: | 185 cc; 63 cc | | Spring pressure: | 125 lbs. on seat; 230 lbs. at 0.500-inch lift | | installed height: | 1.850 inch | | Valve size: | 2.02/1.60-inch | | Intake flow at 0.400 lift: | 223 cfm | | Complete, assembled with guideplates | | Airflow | | Valve lift | .050 | .100 | .200 | .300 | .400 | .500 | | Intake Corr test flow | 29.4 | 59.6 | 124.7 | 80.6 | 223 | 244 | | Exhaust Corr test flow | 20.7 | 48.3 | 96.5 | 134 | 161 | 176 | | POWER | | Average torque: | 458 lb-ft | | Average horsepower: | 405 hp | | RPM | lb-ft | HP | | 3,300 | 475 | 298 | | 3,400 | 474 | 307 | | 3,500 | 478 | 319 | | 3,600 | 481 | 330 | | 3,700 | 488 | 344 | | 3,800 | 490 | 355 | | 3,900 | 490 | 364 | | 4,000 | 490 | 373 | | 4,100 | 489 | 381 | | 4,200 | 488 | 391 | | 4,300 | 489 | 400 | | 4,400 | 485 | 407 | | 4,500 | 481 | 412 | | 4,600 | 478 | 418 | | 4,700 | 474 | 424 | | 4,800 | 471 | 430 | | 4,900 | 466 | 435 | | 5,000 | 461 | 439 | | 5,100 | 455 | 442 | | 5,200 | 450 | 445 | | 5,300 | 446 | 450 | | 5,400 | 438 | 451 | | 5,500 | 431 | 452 | | 5,600 | 422 | 450 | | 5,700 | 414 | 449 | | 5,800 | 407 | 449 | | 5,900 | 399 | 448 | | 6,000 | 388 | 443 | | 6,100 | 379 | 440 |
|