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Connecting Rod Length Info
Connecting rod length is measured between the centers of the big end (journal end) and the little end (piston pin end). Below is a table with stock connecting rod lengths for various engine families.
CHEVROLET V-8 CONNECTING ROD LENGTHS
| Displacement Cubic Inches | Liters | Rod Length(inches) |
|---|---|---|
| 302 | 4.9 | 5.700 |
| 305 | 5.0 | 5.700 |
| 327 | 5.4 | 5.700 |
| 350 | 5.7 | 5.700 |
| 350(LT5) | 5.7 | 5.700 |
| 350(LS1) | 5.7 | 6.098 |
| 383 | 6.3 | 6.000 |
| 400 | 6.6 | 5.565 |
| 396 | 6.5 | 6.135 |
| 402 | 6.6 | 6.135 |
| 427 | 7.0 | 6.135 |
| 454 | 7.4 | 6.135 |
| 502 | 8.2 | 6.135 |
| 377 | 6.2 | 6.135 |
FORD V-8 CONNECTING ROD LENGTHS
| Displacement Cubic Inches | Liters | Rod Length(inches) |
|---|---|---|
| 289 | 4.7 | 5.1550 |
| 302 | 5.0 | 5.0900 |
| 302(Boss) | 5.0 | 5.1500 |
| 302(SVO) | 5.0 | 5.1500 |
| 351 W ('69-'70) | 5.8 | 5.9560 |
| 351 W ('71-'96) | 5.8 | 5.9560 |
| 351 (SVO 9.2) | 5.8 | 5.7800 |
| 351C (Boss) | 5.8 | 5.7800 |
| 351M | 5.8 | 6.5800 |
| 429 STD ('68-'70) | 7.0 | 6.6050 |
| 429 STD ('70 1/2-'71) | 7.0 | 6.6050 |
| 429 CJ/SCJ ('72-'73) | 7.0 | 6.6050 |
| 429 Boss (S) | 7.0 | 6.5490 |
| 429 Boss (T) | 7.0 | 6.6050 |
| 460 | 7.5 | 6.6050 |
| 281 (modular) | 4.6 | 5.9331 |
| 331 (modular) | 5.4 | 6.6575 |
