That’s what doomed the GM diesel conversions back in the 80’s.
They tried to make dirsel engines from gas engine blocks and cranks, etc. True diesel engines are made with much much higher grade materials......
And heavier.
Supposedly Audi went the other way with the block for the 2.7 twin turbo in the early 2000s S4, gas engine, diesel block. There were guys out there getting insane power out of those things.
I owned a midnight blue Oldsmobile 98 diesel. Luxury ride but it ate transmissions and finally the engine block.
It was actually a two part problem. The first being the lightweight construction of the GM small block engine and the second being the normal driving habit of the public.
My dad was an engineer for Cummins and taught us that you can’t drive or run a diesel powered vehicle the same as you would with a gas engine. Basically if you lug a diesel engine it will die an expensive death. Next is that diesels require more frequent oil changes.
He bought a GM 1/2 ton pickup with the OLDS Diesel and then went out and hooked up his 36 foot Holiday Rambler travel trailer to it and put 200,000 on it with no problems.
Needless to say but he was a strong advocate of the diesel technology we see on the market today but this was in the early 70’s when we had the gas crisis. He was always saying he wished someone would put a Cummins engine and an Allison 6 speed in pickup. Unfortunately he died right as Dodge came out with that package (except for the transmission).