A photo from the top would probably show that the carburetor flange on the intake manifold is way too small for your M38 carb. Check the casting number on the exhaust manifold- you may find that the part number is the same as M38 - you'll part number in your ORD 9 SNL G-740. ... Brian
The exhaust will be the same as all the L head engines. The intake is unique to the PE gensets and will not interchange with any of the standard jeep engines and run properly.
John