A 454cid small block with standard deck height, standard cam height World Products' Motown iron block. 4.250-inch bore 4,000" stroke.
Below is a dyno test using 220cc aluminum heads 10.1:1CR, Crane flat tappet cam with 0.560/0.554 lift and 252/260 duration at 0.050 on a 112 LDA, 1050cfm Dominator carb, single plane manifold, electric water pump 1-3/4-inch-tube headers and 3-inch exhaust and Flowmaster mufflers.
With larger or CNC ported heads and a roller camshaft the power output is going to go up.
|
Motown 454 Power |
|
LB-FT |
HP |
| 4,000 |
559.3 |
426.0 |
| 4,100 |
564.8 |
441.0 |
| 4,200 |
574.0 |
459.0 |
| 4,300 |
579.4 |
474.3 |
| 4,400 |
581.7 |
487.3 |
| 4,500 |
584.0 |
500.3 |
| 4,600 |
582.0 |
509.7 |
| 4,700 |
580.5 |
519.4 |
| 4,800 |
581.2 |
531.2 |
| 4,900 |
578.8 |
540.0 |
| 5,000 |
574.7 |
547.1 |
| 5,100 |
572.1 |
555.5 |
| 5,200 |
571.8 |
566.1 |
| 5,300 |
569.3 |
574.5 |
| 5,400 |
564.8 |
580.7 |
| 5,500 |
555.0 |
581.2 |
| 5,600 |
544.2 |
580.3 |
| 5,700 |
535.3 |
581.0 |
| 5,800 |
527.0 |
582.0 |
| 5,900 |
521.4 |
585.7 |
| 6,000 |
516.4 |
590.0 |
| 6,100 |
510.8 |
593.2 |
| 6,200 |
509.7 |
601.7 |
| 6,300 |
506.4 |
607.4 |
| 6,400 |
500.8 |
610.2 |
| 6,500 |
489.9 |
606.3 |
