Engine Identification: Notes
NOTE:
330" engine painted gold, 400" engine painted bronze, 425" engine painted red.
Prefix and suffix letters to "Engine Unit Number" indicate engine type, horsepower, compression ratio, and other characteristics.
Number stamped on front of right cylinder head as follows:
| Engine & Horsepower | Prefix | Suffix | |
|---|---|---|---|
| 330" 250 HP | W | None | |
| 260 HP | X | None | |
| 310 HP | X | L | |
| 320 HP | W or X | G | |
| 400" 350 HP | V | None | |
| 425" 300 HP | M | L | |
| 310 HP | M | None | |
| 365 HP | N | None | |
| 375 HP | N | S | |
| 385 HP | N | T | |