I recall years ago when working at an agricultural dealership, early 80's, a farmer in the area installed a 6-354 Perkins in an early 80's square body dually. Called it his 5th wheel 'haulin' truck' with chrome stacks as I recall.
He swore by it over all the other diesel options available at that time.
Mark
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1985 Chevy C-30 Hydraulic Dump Bed
2001 Saturn SC2 (go to work car)
2010 PT Cruiser (wife's car)
"Reality is just a hallucination brought on by lack of alcohol."