American Speed - Custom Chevy Engines, Chevy Crate Engines, Chevy Racing Engines & More

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DYNO TESTED

500 HP 383 Enforcer Engine

550 HP 383 Brutus Chevy Engine

500 HP 383 Enforcer 550 HP 383 Brutus Chevy Engine

Below are the Dyno Results for Engines:

Engine Type

Horsepower Rating

383 CID "Brutus 750 Supercharged" Engine-racey idle

750 hp @ 6100 rpm, 660 ft. lbs @ 4200 rpm

383 CID "Enforcer 575 Supercharged" Engine-racey idle

575 hp @5900 rpm, 532 ft. lbs. @ 4000 rpm

434 CID "Brutus 555" Engine - racey to rough idle, AFR heads to 600 hp @ 6000 rpm, 600 ft. lbs. @ 4400 rpm
427 CID "Brutus 550" Engine - racey idle, AFR heads 550 hp @ 5800 rpm, 595 ft. lbs. @ 4100 rpm
427 CID "Brutus 600" Engine - racey idle, AFR alum. cyl. heads 600 hp @ 6100 rpm, 605 ft. lbs. @ 4100 rpm
427 CID Fuel Injected "Brutus 545" Engine, racey idle, AFR alum cyl. heads 545 hp @550 rpm, 586 ft. lbs, @4300 rpm
406 CID "Brutus 700" 2 X 4 Engine, racey idle, AFR alum. cyl. heads 700 hp @7400 rpm, 620 ft. lbs. @5500 rpm
406 CID "Brutus 550" Engine - racey idle, AFR heads     550 to 600 hp @ 6000 rpm, 545 ft. lbs. @ 4800 rpm
383 CID "Brutus 550" Engine - rough idle, AFR heads     

550 hp @ 6000 rpm, 535 ft. lbs. @ 4500 rpm

383 CID "Brutus 535" Engine - racey idle, AFR heads     to 535 hp @ 6000 rpm, 525 ft. lbs. @ 4500 rpm
383 CID "Enforcer 525" Engine - racey idle, AFR heads    525 hp @ 5800 rpm, 515 ft. lbs. @ 4400 rpm
396 CID "Brutus 510" Engine-racey idle.  AFR heads 510 hp @ 5500 rpm, 535 ft. lbs. @ 4400 rpm
383 CID "Enforcer 500" Engine - racey idle, AFR heads   500 hp @ 5600 rpm, 515 ft. lbs. @ 4400 rpm
396 CID "Brutus 485" Engine-racey idle.  AFR heads 485 hp @ 5300 rpm, 535 ft. lbs. @ 3900 rpm
383 CID "Torquer 480" Engine - racey idle, AFR heads    480 hp @ 5400 rpm, 515 ft. lbs. @ 3900 rpm
355 CID "Enforcer 475" Engine - rough idle, AFR heads    475 hp @ 6000 rpm, 460 ft. lbs. @ 4400 rpm
396 CID "Brutus 465" Engine - racey idle, AFR heads  465 hp @ 5300 rpm, 525 ft. lbs. @ 4300 rpm
383 CID "Torquer 460" Engine - racey idle, AFR heads   

460 hp @ 5400 rpm, 500 ft. lbs. @ 4200 rpm

355 CID "Enforcer 460" Engine - rough idle, AFR heads   

460 hp @ 5800 rpm, 455 ft. lbs. @ 4400 rpm

383 CID "Torquer 450" Engine - racey idle, Edelbrock heads  

450 hp @ 5400 rpm, 495 ft. lbs. @ 3900 rpm

355 CID "Enforcer 440" Engine - racey idle, Edelbrock heads 

440 hp @ 5400 rpm, 445 ft. lbs. @ 3900 rpm

383 CID "Enforcer 425" Engine - racey idle, Edelbrock heads 

425 hp @ 5400 rpm, 485 ft. lbs. @ 3900 rpm

355 CID "Enforcer 425" Engine - racey idle, Edelbrock heads 

425 hp @ 5600 rpm, 440 ft. lbs. @ 3900 rpm

383 CID "Enforcer 400" Engine - racey idle, Edelbrock heads 400 hp @ 5000 rpm, 480 ft. lbs. @ 3900 rpm
355 CID "Enforcer 400" Engine - racey idle, Edelbrock heads  400 hp @ 5200 rpm, 435 ft. lbs. @ 4000 rpm
383 CID "Enforcer 385" Engine - good idle, Edelbrock heads   385 hp @ 4800 rpm, 470 ft. lbs. @ 3700 rpm
383 CID "Enforcer 375" Engine - good idle  375 hp @ 4800 rpm, 460 ft. lbs. @ 3700 rpm
355 CID "Enforcer 375" Engine - racey idle, Edelbrock heads  375 hp @ 5200 rpm, 430 ft. lbs. @ 4100 rpm
355 CID "Enforcer 365" Engine - good idle, Edelbrock heads 365 hp @ 5200 rpm, 420 ft. lbs. @ 4000 rpm
383 CID "Enforcer 355" Engine - smooth idle 355 hp @ 4800 rpm, 455 ft. lbs. @ 3200 rpm
355 CID "Enforcer 350" Engine - crisp idle 350 hp @ 5000 rpm, 415 ft. lbs. @ 3700 rpm
350 CID "Saturday Night Special 335" Engine  crisp idle  335 hp @ 5200 rpm, 395 ft. lbs. @ 3800 rpm
350 CID "Saturday Night Special 325" Engine - good idle 

325 hp @ 5200 rpm, 390 ft. lbs. @ 3800 rpm

350 CID "Saturday Night Special 300" Engine - 87 & up - smooth idle   

300 hp @ 5000 rpm, 385 ft. lbs. @ 3700 rpm

350 CID "Saturday Night Special 300" Engine - smooth idle 300 hp @ 5000 rpm, 380 ft. lbs. @ 3700 rpm
350 CID "Saturday Night Special 275" Engine - smooth idle 275 hp @ 4800 rpm, 370 ft. lbs. @ 3600 rpm
540 CID "Brutus 700" Engine, racey idle, Brodix alum. cyl. heads 750 hp @ 6000 rpm, 705 ft. lbs. @4800 rpm
582 CID "Brutus 800" Engine, racey idle, AFR alum. cyl. heads 800 hp @ 6300 rpm, 815 ft. lbs. @4800 rpm
632 CID "Brutus 900" Engine, rough idle, Brodix alum. cyl. heads 900 hp @ 6200 rpm, 850 ft. lbs. @4600 rpm
 

All horsepower figures are SAE corrected horsepower ratings on American Speed's water brake dyno.

Not legal for sale in California or on pollution controlled motor vehicles. For offroad use only.  

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 American Speed Enterprises, Inc.  3006 Avenue of the Cities,  Moline, IL 61265  Telephone: 309-764-3601  FAX: 309-764-2786

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