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Cummins QSB6.7

donquijote

Active member
166
36
28
Location
Louisiana
Anyone in here ever fit a Cummins QSB6.7 in their m998? I am eyeing a few for sale and wanted to get some opinions on it, if anyone has converted to a QSB. Thanks
 

dk8019

Active member
802
55
28
Location
Lovettsville, VA
It might be difficult:

http://www.dieselhub.com/tech/engine-dimensions.html

The 6.2/6.5 is 30" long, the Cummins is 41.7", the width is 26" vs 28.6" and the height is 26" vs 37.8". From a dimension perspective it isn't going to fit. Next is the weight, the V8 is 750lbs versus the 1150lbs of the Cummins which is a serious uptick in weight.

Bad news all round, but you could consider the 4BT. The height is still an issue, but may not be insurmountable.
 

cruzinz28

Member
321
18
18
Location
Maryland
There is a member on here that is more active on another site that has done several Cummins swaps into the HMMWV. I can shoot him a text and see if he can send me a few pictures of his work if you want.
 
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