I'm just going to set this out for everyone's benefit:

The 6.2L and 6.5L diesels were developed *solely* by Detroit Diesel. Izuzu had nothing to do with them.

Specs on the 6.2L:
Introduced 1982, normally aspirated, indirect injection, 2-V OHV, cast iron block and head.
Compression: 21.5:1
HP: 143 hp @ 3,600 rpm [107 kW]
Torque: 257 ft-lb @ 2,000 rpm [348 N*m]
Weight without accessories (J-code): 655 lbs. [297 kg]


Can anyone find specs for the 603.97? The mythical 603 that revs to over 7,200 rpm? And only masses 100 kg?

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1983 300SD 467,000 km - 473 champagnermetallic

location: 34°5' N 106°53' W (Socorro NM, USA)