1968 Oldsmobile Cutlass

S Other

8 - Cyl.

Automatic

386878M408939.

Gasoline

1968 Oldsmobile Cutlass S, 455 motor, automatic transmission, no air conditioning, some rust on pans, frame and body good, this is a rare model, for restoration. surely an investment that will appreciate and hold its value. i am unsure of motor size, i was told a 455, i was hoping someone could identify the size by the numbers on the block, please help so i can list it with the motor size. it is a 455 1.) cars original paint was white. 2.) valve covers and engine block are blue. 3.) vin # 386878M408939. 4.)body by fisher tag reads; 06A ST 68-33687 LAN412679 TA 944 T-8 5.) engine block # located on front of block 396021F 6.) code #,s found on block by exhaust ports XCFI 783 For your 1968 Cutlass, all though this is for the year 1972 it will still give you a good description: 1972 Oldsmobile Models 1st digit - GM Division 1 = Chevrolet 2 = Pontiac 3 = Oldsmobile 4 = Buick 5 = GMC 6 = Cadillac 2nd Digit - Series D = F85 4-door sedan F = F85 2-door coupe G = Cutlass J = Cutlass Supreme K = Vista Cruiser 3rd and 4th Digits - Body Style 36 = 4-Door Station Wagon 39 = 4-Door Supreme 56 = 4-Door Vista Cruiser Wagon 57 = 2-Door Supreme 66 = 4-Door Vista Cruiser Wagon 67 = 2-Door Convertible 69 = 4-Door Sedan 77 = 2-Door Club Sedan 87 = 2-Door Coupe 5th Digit - Engine Code H = 350-2bbl V8 160 hp J = 350-2bbl V8 175 hp dual exh. K = 350-4bbl V8 180 hp M = 350-4bbl V8 200 hp dual exh. U = 455-4bbl V8 250 hp dual exh. V = 455-4bbl V8 270 hp dual exh. X = 455-4bbl V8 300 hp (W30) 6th Digit - Model Year 2 = 1972 7th Digit - Assembly Plant G = Framingham, MA M = Lansing, MI R = Arlington, TX Z = Fremont, CA