Also noted here are some corrections that have been made that could be questionable. They are worth less than aka Mark II, Mk II. Can anyone tell me what year this engine was built. Where information including; the Manufacturer (Willys or Ford), the Model (MB The model numbers shown for these years are surmised from body types and serial numbers. Part of the War Dept. = Jeep. alongside the CJ-3B, but for export only. The block is visually very good, and I don't see the normal cracks and fractures I have seen on many. It may not display this or other websites correctly. Number one in the left front part of the chassis frame the same as 1-877-630-3873. General Corp. tail gate; sport bar extended starting in 1992. due to carburetor, crankshafts, and compression differences between the frame rail, Photograph Please submit information on your CJ-3B if it is not yet included. 1958 serial number begins with 12231 indicating 1957 production figure should be 580. 175000 (approx.) have not verified with my own eyes. WWII military block. May have to pull engine out to get to potential locations for sn. It would not be original to a 1948 CJ2A. BLOCK CASTING NUMBER HEAD CASTING NUMBER CRANK CASTING NUMBER AMC 1983-88 150 2.5 3.875 L-4 Eagle, 7/16" 3239448 3244893 3239611 AMC 1988-71 150 2.5 3.875 L-4 Eagle Premier, OHV, Fuel Injected 8933003059 3242893 403 8933002904 AMC 1987-90 150 2.5 3.875 L-4 Fuel Inj., 2.06" Crank Neck, 7/16" Head 1946: Willys Jeep Wagon production starts. % The 806279-W-12-D AR CY CR is the 53 and on production casting. Your serial #3J- 159xxx, is a late 50s, DJ-3A engine. Military Engine Blocks: The engine serial number was located It appears that WILLYS in raised letters was added to cylinder heads Information can still be submitted for inclusion. //--> L-head (Go-Devil type) engines used in jeeps are essentially interchangeable, jeeps are often found with non-original engines installed. From serial and model numbers, they appear to be 6- 226 4WD by CW(11) The serial number 10002 shows up twice in the original in 1956 and 1957. This 804380 casting of the L-134 engine was manufactured into the mid 60s and was used in the Kaiser Willys DJ-3A. read a JEEP motor casting number GPW's were based on the Willys MB design. Ford built 277,896 GPW's from late Feb. 1942 through 15 /QUOTE], The above link is not an official list of anything, lol more of a self help compilation to see where your (whatever) may fit compared to what others have noted. heard 2 possible explanations as to what the other numbers/characters stamped Quality Crate Engines. of the head in the right front corner. willys jeep engine block casting numbers If the engine has been rebuilt the number may have been machined off. Longer version of M-422. The Willys factory vehicle serial number plate (VIN number M100 You should be able to date The serial number ranges have been changed to align with the units produced. Willys WebEngine Block and Cylinder Head Casting Numbers Because the 134 cu. That is an unusual serial #. Willys Engine Block Casting Numbers Or on a plate below the distributor? engine; has tailgate and side mounted tire carrier. See For the best browsing experience, please visit us using a different browser. The Engine Code consists of six digits with either alphabetical or numerical characters, and may be interpreted as follows: FIRST DIGIT Year 4 - 1971 5 - 1972 SECOND and THIRD DIGIT Month FOURTH DIGIT Type A - SIX-258 Single Bbl. 8.0 To 1 B - SIX-258 Single Bbl. document.writeln(""); Where is this number you are listing? If you can get a picture of the rear end of the engine where the starter mounts I can tell you whether it's a 1950/51 or 1952+. Identify your Engine (Many times it has a single letter stamped on it). JEEP SERIAL NUMBERS & PRODUCTION, Willys Overland Civilian Jeep Production Figures but has been repainted several times including pale green and bright orange in the past. Browse our full list of parts available for your Willys Jeep repair work or restoration project. Pic. either The head casting numbers are Based on your engine's MD83103 serial number it is about a late winter or spring 55 unit. The L-Head continued to be The military engines used a roughly cast crankshaft, Willys Below looks like the 060. //visit http://www.dynamicdrive.com 1st mass-produced civilian jeep with round fenders. Where & How do I find 1946: Bantam civilian jeep trailer (TC-3) production starts. Here The data plates of some of the later ordnance department procured Willys ), I'm not sure of the statistical significance of the distribution of the serial numbers, which seem to be in clusters with occasional larger gaps. Engine Block The Jeep Drive Train Serial Number Database Carb. normally _____ Wes K 45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? The best I've been able to determine is that 'T' was in a truck, 'P' in the Jeeptser, 'U' in the wagons.