By The Numbers
407ci Small-Block Chevy
Bore: 4.150 inches
Stroke: 3.750 inches
Displacement: 407 actual cubic inches
Compression ratio: 11.5:1
Camshaft: COMP Cams solid roller
Cam duration: 243/247 degrees at .050-inch tappet rise
Lobe separation: 104 degrees
Valve lift: .647/.647 inch
Rocker ratio: Jesel 1.85/1.7 ratio
Top ring: .043-inch Total Seal
Second ring: .043 inch
Oil ring: 3mm
Piston: CP flat-top
Block: World Motown
Crankshaft: Scat Ultralight
Rods: Scat I-beam 6.125 inches
Cylinder head: Brodix 10X raised runner
Intake valve diameter: 2.150 inches
Exhaust valve diameter: 1.60 inch
Intake manifold: Dart
Carburetor: Holley Ultra HP 750
Header: Schoenfield
Ignition: PerTronix
Fuel: VP100 gasoline

RPM: TQ: HP:
2,500 465 221
2,600 472 233
2,700 473 243
2,800 478 255
2,900 486 268
3,000 493 282
3,100 497 293
3,200 498 304
3,300 495 311
3,400 491 318
3,500 485 323
3,600 479 328
3,700 475 334
3,800 476 344
3,900 489 363
4,000 504 384
4,100 516 403
4,200 528 422
4,300 539 441
4,400 549 460
4,500 558 478
4,600 565 494
4,700 569 510
4,800 571 522
4,900 570 532
5,000 566 539
5,100 562 546
5,200 559 554
5,300 557 562
5,400 555 571
5,500 553 579
5,600 551 587
5,700 548 595
5,800 544 601
5,900 539 606
6,000 535 611
6,100 529 614
6,200 522 616
6,300 513 615
6,400 504 614
6,500 494 611