Get the VIN and the first two letters will tell you the Model: WH = Coronet 440 WP = Coronet 500 WS = Coronet R/T
The 5th letter will tell you the engine: F = 318 G = 383 K = 440 Actually that would be a L.. K is 350 hp 440 used in C bobies, L is 375 hp 440 (Magnum) J = 426 H = 383 hi performance
The R/T came stock with a 440 engine and the only option was the 426 Hemi.
According to my 68 manual the Coronet 500 would be the 318 engine. However as previously stated no 318 engine with the 4 speed.
You are right! I copied the info from a 68 Chrysler Service Manual on CD and it listed them as I posted. I should have caught that since my car has an L.
