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Vlavesprings - Spring Fling

Component PN
Beehive spring, big-block 26120
Beehive spring, LS1, LS6 26918
Beehive spring, LS1, LS6 26915
Beehive springs, 4.6L Ford two-valve 26113
Retainer, steel for PN 26120 795
Retainer, titanium for PN 26120 794
Retainer, steel for PN 26918 774 or 783
Retainer, titanium for PN 26918 772

Test Results
  Test 1 Test 2 Difference
RPM TQ HP TQ HP TQ HP
2,200 416 174 433 182 17 8
2,400 421 192 447 204 26 12
2,600 449 222 462 229 13 7
2,800 466 248 474 252 8 4
3,000 468 267 479 273 11 6
3,200 480 293 497 303 17 10
3,400 501 325 515 334 14 9
3,600 516 354 526 360 10 6
3,800 520 376 529 383 9 7
4,000 523 398 527 402 4 4
4,200 516 413 518 414 2 1
4,400 504 422 505 423 1 1
4,600 490 429 494 432 4 3
4,800 478 437 485 443 8 6
5,000 468 445 475 452 7 7
5,200 454 449 463 458 9 9
5,400 433 445 442 455 9 10
5,600 412 439 430 459 18 20
5,800 - - 413 456 - -
 
AVG 473.0 351.5 479.7 363.8 10.4 7.2

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