Here is the skinny on the LA Engines.
Displacement | Model Years | Bore | Stroke | Bore Spacing | Main Journal Diameter | Rod Journal Diameter | Connecting Rod Center to Center | Crankshaft Centerline to Deck |
---|---|---|---|---|---|---|---|---|
273 | 1964-1969 | 3.63 | 3.31 | 4.46 | 2.5 | 2.215 | 6.123 | 9.6 |
318 | 1966-1991 | 3.91 | 3.31 | 4.46 | 2.5 | 2.215 | 6.123 | 9.6 |
318 MAGNUM | 1992-PRESENT | 3.91 | 3.31 | 4.46 | 2.5 | 2.215 | 6.123 | 9.585 |
340 | 1968-1973 | 4.04 | 3.31 | 4.46 | 2.5 | 2.215 | 6.123 | 9.6 |
360 | 1971-1992 | 4.00 | 3.58 | 4.46 | 2.5 | 2.215 | 6.123 | 9.6 |
360 MAGNUM | 1992-PRESENT | 4.00 | 3.58 | 4.46 | 2.5 | 2.215 | 6.123 | 9.585 |