By the Numbers

Atlantic Engines 407ci Gen III Hemi

Bore: 4.000-inch
Stroke: 4.050-inch
Displacement: 407 actual cubic inches
Compression ratio: 11.2:1
Camshaft: Elgin hydraulic roller
Cam duration: 238/241 degrees at .050-inch tappet rise
Valve lift: .598/.598-inch
Rocker ratio: OEM 1.65 ratio
Top ring: .043 inch
Second ring: .043 inch
Oil ring: 3mm
Piston: Mahle dished
Block: OEM 5.7
Crankshaft: Callies Compstar
Rods: Callies Compstar H-beam
Cylinder head: OEM 5.7
Intake valve diameter: 2.05-inch
Exhaust valve diameter: 1.55-inch
Intake manifold: OEM 6.1
Fuel Injection: FAST XFI
Header: Hedman
Ignition: FAST XIM
Damper: ATI

Dyno Data

407ci Gen III Hemi

RPM TQ HP
2,600 415 205
2,700 413 212
2,800 416 222
2,900 426 235
3,000 431 246
3,100 440 260
3,200 454 277
3,300 474 298
3,400 486 315
3,500 494 329
3,600 501 344
3,700 508 358
3,800 508 367
3,900 509 378
4,000 518 394
4,100 521 407
4,200 527 422
4,300 538 441
4,400 548 459
4,500 554 475
4,600 561 491
4,700 564 504
4,800 563 515
4,900 558 521
5,000 552 526
5,100 557 541
5,200 563 557
5,300 563 569
5,400 567 583
5,500 571 597
5,600 569 607
5,700 567 615
5,800 563 622
5,900 558 627
6,000 553 632
6,100 547 635
6,200 539 637
6,300 534 640
6,400 528 643
6,500 520 644

SOURCE
FAST
3400 Democrat Road
Memphis
TN  38118
877-334-8355
www.fuelairspark.com
Atlantic Engines
2438 Dry Ponds Rd
Granite Falls
NC  28630
828-850-1536
www.atlanticengines.com
Comp Cams
3406 Democrat Road
Memphis
TN  38118
800-999-0853
www.compcams.com
Mahle
888-255-1942
http://www.us.mahle.com/MAHLE_No
rth_America/en/Motorsports