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Author Topic: Engine Number Beginning With 4SW  (Read 179 times)

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Offline ojgrsoi

Engine Number Beginning With 4SW
« on: March 05, 2020, 10:18:38 AM »
I seem to have a transplanted L134 in my M38.  The engine number is 4SW11381.  Any guesses on where it might have come from?

Thanks.
Mark
51 M38
70 USA DJ5 LHD - F134/T96
73 IH Cub 154 Lo Boy

78 USN DJ5F LHD-SOLD, 67 CJ6-SOLD, 65 CJ5A-SOLD :(, 51 M100-SOLD, 71 CJ5-SOLD, 79 DJ5G-SOLD

Offline athawk11

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Re: Engine Number Beginning With 4SW
« Reply #1 on: March 05, 2020, 11:10:28 AM »
These do exist as a real L134 prefix, but they don't seem to be very common.  4 usually means it was in a 4 wheel drive vehicle.  SW...Station Wagon?    That said, Willys seemed to use the  "U" prefix in their Wagons.  I don't think they called their wagons "Station Wagons" back then.

What is the engine casting number?  It is found along the lower edge of the block down by the oil pan, on the passenger side.  There are possibly some numbers on the driver side too.  If so, what are they?

Bob Westerman may be able to help.  He might see this post, but I recommend sending him a PM.  He could have the answer.
2-1949 CJ3As
1-1946 CJ2A

Offline Bob W

Re: Engine Number Beginning With 4SW
« Reply #2 on: March 06, 2020, 08:06:29 PM »
I'd say that engine serial number is from about 1949 or so. The casting number and other cast characters from the driver and passenger sides, down low, near the rear would help to date it.
Check out the Norton Young Willys-Overland Production Figures over on the CJ-3B Page.
https://cj3b.info/WOfigures.html
This shows that Willys did use an "SW" designation.

Offline ojgrsoi

Re: Engine Number Beginning With 4SW
« Reply #3 on: March 06, 2020, 08:14:45 PM »
Thanks all.  I will be under there tomorrow and see what I can get on the casting numbers.   ;D

What does the 463 designate?


« Last Edit: March 06, 2020, 08:19:53 PM by ojgrsoi »
Mark
51 M38
70 USA DJ5 LHD - F134/T96
73 IH Cub 154 Lo Boy

78 USN DJ5F LHD-SOLD, 67 CJ6-SOLD, 65 CJ5A-SOLD :(, 51 M100-SOLD, 71 CJ5-SOLD, 79 DJ5G-SOLD

Offline ojgrsoi

Re: Engine Number Beginning With 4SW
« Reply #4 on: March 06, 2020, 08:24:09 PM »
ok... I figured it out.    :-[

463 is a station wagon...


« Last Edit: March 06, 2020, 08:29:35 PM by ojgrsoi »
Mark
51 M38
70 USA DJ5 LHD - F134/T96
73 IH Cub 154 Lo Boy

78 USN DJ5F LHD-SOLD, 67 CJ6-SOLD, 65 CJ5A-SOLD :(, 51 M100-SOLD, 71 CJ5-SOLD, 79 DJ5G-SOLD

Offline ojgrsoi

Re: Engine Number Beginning With 4SW
« Reply #5 on: March 07, 2020, 02:05:31 PM »
Here are some photos of the casting number.  I don't find anything on the street side of the block.



Mark
51 M38
70 USA DJ5 LHD - F134/T96
73 IH Cub 154 Lo Boy

78 USN DJ5F LHD-SOLD, 67 CJ6-SOLD, 65 CJ5A-SOLD :(, 51 M100-SOLD, 71 CJ5-SOLD, 79 DJ5G-SOLD

Offline Bob W

Re: Engine Number Beginning With 4SW
« Reply #6 on: March 07, 2020, 04:09:12 PM »
I don't have much information about the Willys Utility line of vehicles, but with those casting numbers I'd say that the engine is close to, but no later than 1949.