Oilpan Question

Area for Discussion of non-original and non-Theater Modifications to the GM family of WWII trucks. This would include engine, transmission, and driveline swaps, etc.
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snow man
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Oilpan Question

Post by snow man »

Will the military oil pan { two piece } work on a 1954 civilian 270 and can you change the oil pickup to the pump { cut and reweld or bolt on } also what would be a good choice for a carburetor. I found a nice 270 out of a 1954 fire truck with around 20,000 miles, I'm going to keep looking for 302 & 270's in my area .Thanks
GMC CCKW 353, M29 weasel, 1/2 ton dodge, Ben Hur Trailer
armydriver
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Post by armydriver »

I can't help on the oil pan question, however you would be wise to use the Zenith carburator originally designed for the engine.
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Miner Matt
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Post by Miner Matt »

I'm with Armydriver on the carb.You can't beat the Zenith.You may allready know this but the 1954 270 motor mount is different on the front than the pre 1950 I bought one on e-bay to have a spare. The guy has 9 more I'm sure he will list them again. They are hard to come bye.
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dr deuce
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Post by dr deuce »

From memory:

I believe that the later 270, like the later Chev 235 use a bigger carb
mounting flange. The carb should be easy enough to come by. Look in
antique car and truck flea markets or in Hemmings

I believe that the oilpan will work with the CCKW pickup plumbing.

One thing you will get is a flat flywheel! Depending upon what it is drilled for, you could use up to a 1974 Chev Corvette 11" clutch and get rid of that troublesome GMC clutch
Dr Deuce Over 50,000 driven miles in a CCKW
1942 CCKW closed cab shopvan
1943 CCKW closed cab cargo w/M32 MG mount
1944 CCKW open cab LeRoi Kompressor
1944 CCKW open cab F1 Aircraft fueler tanker
1945 CCKW open cab cargo w/artic cab
1942 Chev cargo
1942 Chev K51 Panel
1944 Chev M6 Bomb Truck
1942 GPW Jeep
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snow man
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Re:

Post by snow man »

Miner Matt wrote:You may allready know this but the 1954 270 motor mount is different on the front than the pre 1950 .
I hope that's a good thing , i haven't ever done a motor swap in the CCKW's before but would like to retain the oil pan if for no other reason " looks ". Hopefully one day we could get a forum going with some detail pic's of these swaps. These old trucks are not getting any younger and one day it might need a heart transplant to keep them going .
GMC CCKW 353, M29 weasel, 1/2 ton dodge, Ben Hur Trailer
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