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|
| BY THE NUMBERS |
| 461ci Big-Block Olds |
| Bore: |
4.155 inches |
| Stroke: |
4.250 inches |
| Displacement: |
461 ci |
| Compression ratio: |
10.44:1 |
| Camshaft: |
COMP flat tappet |
| Cam duration: |
240/246 degrees at .050 |
| Valve lift: |
541/.544 inch |
| Rocker ratio: |
1.6:1 |
| Lobe separation: |
110 degrees |
| Installed centerline: |
109 degrees |
| Top ring: |
1/16 inch |
| Top ring gap: |
.026 inch |
| Second ring: |
1/16 inch |
| Second ring gap: |
.028 inch |
| Oil ring: |
3/16 inch |
| Pistons: |
SRP |
| Block: |
stock 455 Olds |
| Crankshaft: |
stock nodular iron |
| Rods: |
Eagle 6.735 inch steel |
| Main journal: |
2.988 inches |
| Main bearing clearance: |
.0035 inches |
| Rod journal: |
2.488 inches |
| Rod bearing clearance: |
.0027 inch |
| Bearings: |
Clevite |
| Cylinder heads: |
Edelbrock Performer RPM |
| Intake valve diameter: |
2.072 inches |
| Exhaust valve diameter: |
1.680 inches |
| Intake manifold: |
Edelbrock Torquer |
| Carburetor: |
Holley 750 cfm |
| Ignition: |
MSD |
| DYNO DATA |
| RPM |
TQ |
HP |
| 3,000 |
494 |
282 |
| 3,100 |
489 |
289 |
| 3,200 |
487 |
297 |
| 3,300 |
488 |
306 |
| 3,400 |
490 |
317 |
| 3,500 |
494 |
329 |
| 3,600 |
501 |
344 |
| 3,700 |
512 |
361 |
| 3,800 |
522 |
378 |
| 3,900 |
529 |
393 |
| 4,000 |
535 |
407 |
| 4,100 |
540 |
422 |
| 4,200 |
540 |
432 |
| 4,300 |
540 |
442 |
| 4,400 |
540 |
451 |
| 4,500 |
540 |
462 |
| 4,600 |
540 |
473 |
| 4,700 |
538 |
481 |
| 4,800 |
533 |
487 |
| 4,900 |
528 |
493 |
| 5,000 |
522 |
497 |
| 5,100 |
516 |
501 |
| 5,200 |
511 |
505 |
| 5,300 |
505 |
509 |
| 5,400 |
499 |
513 |
| 5,500 |
491 |
514 |
| 5,600 |
481 |
513 |
| 5,700 |
471 |
511 |
| Ave: |
513 |
425 |
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