1.Aluminum Head (Caution: do not Overheat)
[I.E. Make sure all the Cooling System components work.]
[As a side note the Finns take these 602 -603 engines up to 450HP
So, Normally configured they can be very reliable]
(The 617 is an "All Steel" assembly AND is seemingly Bullet-Proof as long as
it has Coolant and Lubrication)
2. "In Tune" 24-26 MPG Urban, 34-37 MPG Motorway

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'84 300SD sold
124.128