1970→1970 Plymouth Road Runner HEMI
Above Images ©Richard Owen
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For the 1970 model year, Plymouth updated the Road Runner design and continued to offer the potent big block options. Both the 440 and HEMI 426 were built as a response to the Buick GNX and Mustang Boss 429.
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In Detail
| tags | muscle |
| submitted by | admin |
| type | Production Car |
| production years | 1970 - 1970 |
| built at | USA |
| engine | HEMI V8 |
| position | Front Longitudinal |
| aspiration | Natural |
| block material | Cast Iron |
| valvetrain | Pushrod OHV |
| displacement | 6981 cc / 426 in³ |
| bore | 107.9 mm / 4.25 in |
| stroke | 95.300003 mm / 3.75 in |
| compression | 10.25:1 |
| power | 316.89999 kw / 425 bhp @ 5000 rpm |
| specific output | 60.88 bhp per litre |
| torque | 664.40002 nm / 490 ft lbs @ 4000 rpm |
| redline | 5500 |
| body / frame | Unitary Steel Monocoque |
| driven wheels | RWD |
| transmission | 4-Speed Manual |
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