| Mopar 318 | ||
| RPM | HP | TQ |
| 3,000 | 190 | 332 |
| 3,500 | 241 | 376 |
| 4,000 | 286 | 376 |
| 4,500 | 321 | 375 |
| 4,900 | 357 | 382 |
| 5,000 | 363 | 381 |
| 5,500 | 388 | 371 |
| 6,000 | 398 | 348 |
| 6,200 | 400 | 339 |
| 6,500 | 393 | 318 |
| Junkyard Jewel 318 Power Curves | ||||||
| RPM | TEST 1 | TEST 2 | TEST 3 | |||
| Torque | HP | Torque | HP | Torque | HP | |
| 3,000 | 334.9 | 191.3 | 354.1 | 202.3 | 349.1 | 199.4 |
| 3,500 | 360.7 | 240.4 | 378.2 | 252.0 | 380.7 | 253.7 |
| 4,000 | 376.6 | 286.8 | 402.3 | 306.4 | 401.5 | 305.8 |
| 4,100 | 379.3 | 296.1 | 402.4 | 314.1 | 401.6 | 313.5 |
| 4,500 | 374.0 | 320.4 | 402.5 | 344.9 | 400.1 | 342.8 |
| 4,600 | 374.0 | 327.6 | 403.1 | 353.0 | 400.6 | 350.9 |
| 4,700 | 373.5 | 334.2 | 400.6 | 358.4 | 408.0 | 365.1 |
| 5,000 | 363.9 | 346.4 | 389.7 | 371.0 | 402.0 | 382.7 |
| 5,500 | 344.0 | 360.2 | 368.3 | 385.7 | 386.5 | 404.8 |
| 5,900 | 331.1 | 372.0 | 347.1 | 390.0 | 361.4 | 406.0 |
| 6,000 | 328.3 | 375.0 | 344.0 | 393.0 | 353.8 | 404.2 |
| 6,100 | 319.4 | 371.0 | 339.2 | 394.0 | 347.8 | 404.0 |
| RPM | TQ | TQ | HP | HP |
| BASE | PORTED | BASE | PORTED | |
| 3,000 | 335 | 335 | 192 | 192 |
| 3,200 | 342 | 340 | 208 | 207 |
| 3,400 | 351 | 356 | 228 | 231 |
| 3,600 | 365 | 369 | 250 | 253 |
| 3,800 | 374 | 379 | 271 | 274 |
| 4,000 | 379 | 384 | 289 | 293 |
| 4,200 | 378 | 383 | 302 | 306 |
| 4,400 | 375 | 383 | 314 | 321 |
| 4,600 | 376 | 382 | 329 | 335 |
| 4,800 | 375 | 386 | 343 | 353 |
| 5,000 | 372 | 384 | 354 | 366 |
| 5,200 | 367 | 383 | 363 | 378 |
| 5,400 | 361 | 379 | 371 | 390 |
| 5,600 | 355 | 374 | 379 | 399 |
| 5,800 | 350 | 371 | 386 | 409 |
| 6,000 | 345 | 365 | 395 | 418 |
| 6,200 | 341 | 360 | 402 | 425 |
| 6,400 | 329 | 345 | 401 | 421 |