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Engine differences, the nitty gritty

1K views 4 replies 4 participants last post by  GrecianVolvo 
#1 ·
So what are the EXACT differences between the HPT motors?

I know in 98-99 transition new cam/intake/ecu (thrttle by wire)/ changes happened. Also in the older 740 series some motors had "low friction" i.e. less bearing surfaces, and such. Also rumor that the C70 has a R motor in it. Heard it has a separate software code base for ECU than S70... All rumors.

So...
Who knows exactly what motor is in C70?
Year over year motor changes?
Truth of "stronger rods, etc"?

Thanks...
Carl
 
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