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Small Block Mopar Stroker Dyno Test - 480hp Mopar Stroker

Don't Spend A Lot Of Cash; Try This . . .

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Baseline
Start saving money for tires now. This thing is a torque monster. Components: Edelbrock RPM Air-Gap dual-plane; Holley 750 carb with 71 primary jets, 80 secondary jets; TTI 15/8-inch stepped headers; 34 degrees total timing; 155-degree water temperature; 160-degree oil temperature.

RPM HP LB-FT
3,000 256 449
3,200 281 461
3,400 303 468
3,600 327 478
3,800 354 489
4,000 382 502
4,200 402 503
4,400 422 504
4,600 439 502
4,800 449 491
5,000 454 477
5,200 469 474
5,400 474 461
5,600 473 444
5,800 474 430
6,000 474 415

Test 1: Best Run
Adding a 1-inch open spacer and jetting up the carburetor produced the best numbers we'd see out of this engine. Components: same as baseline plus a 1-inch open carb spacer and a jet change to 73/84.

RPM HP LB-FT
3,000 255 446
3,200 276 453
3,400 294 455
3,600 321 469
3,800 354 489
4,000 383 504
4,200 409 512
4,400 432 517
4,600 450 514
4,800 461 505
5,000 467 490
5,200 479 484
5,400 485 471
5,600 483 453
5,800 478 433
6,000 472 413

Test 2
Next, we tried bigger headers but didn't gain any power. Components: same as Test 1 but substituting larger Hooker Super Competition 13/4-inch headers.

RPM HP LB-FT
3,000 246 430
3,200 268 440
3,400 295 456
3,600 323 471
3,800 352 487
4,000 381 500
4,200 409 511
4,400 431 514
4,600 448 512
4,800 458 502
5,000 465 488
5,200 477 482
5,400 482 469
5,600 482 452
5,800 477 432
6,000 470 412

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