I have a 1966 Plymouth satellite with a 426 street wedge hemi motor. I have a few questions about the engine verification numbers. there is a 9 digit number located on the radiator support, #7L2802224. I am curious if this will verify anything about the car. I have broken down the VIN code, and it matches out to a 426 street wedge with the 4-speed manual. I do not believe it is the same motor that came with the car, however, this car ran quarters when new. I have a feeling the motor blew, and since it was still under warranty from Chrysler, they put a correct engine in. I would like to know if there is anything I can do to prove this. Thanks for reading, Josiah C.
One of us is confused! The 426-S (wedge) was discontinued after 1965.
The SO number you quote can be tied to the VIN via the data plate, the NICB, or Chrysler Historical.
If it is an original 426 Hemi, the 5th digit of the VIN should be “H”;There’s nothing in the VIN that indictes the transmission. Assuming a true Hemi car, under “AB” on the date plate should be “73”.
The VIN was not on the engine in 1966. If the engine were replaced, the cast date of the block could be later than the car’s build date, but all other components should be earlier than that date (carbs, all 3 manifolds, and a zillion other parts).