The 1985 300SD & 300DT use a different valve body than ANY other car so your best bet would be to overhaul the original.

Also the V-8's have a much larger bellhousing than the diesel engine does. So it wouldn't bolt up.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator