DYNO DATA
RPM LB-FT HP
2,000 344 130
2,200 345 144
2,400 388 177
2,600 420 211
2,900 447 246
3,100 474 282
3,400 493 317
3,600 507 349
3,800 509 370
4,100 500 387
4,300 525 433
4,600 562 487
4,800 576 524
5,000 581 557
5,300 582 592
5,600 583 622
5,900 576 644
6,100 563 656
6,400 547 663
6,600 530 669
6,900 509 667

Although the standard Mast LS7 SS is rated at 650 hp and 560 lb-ft, the optional FAST intake manifold on our test engine increased those numbers to 669 and 583, respectively. At just 2,500 rpm the motor is already producing over 400 lb-ft, yet the big LS7 keeps on pulling past 7,000 rpm. How's that for a flexible power curve? To keep the test data as accurate as possible, Mast prefers step testing its engines on the dyno instead of the more common sweep testing procedure.

SOURCE
Mast Motorsports
330 NW Stalling Drive
Nagodoches
TX  75964
866-551-4916
www.mastmotorsports.com