How reliable were these motors? Were these 502's or 540's? Would the new 575 pretty much replace this motor (besides the EFI)?

And lastly how easy are they around the docks. Are they fussy at idle or do they maintain their hum from idle to WOT.

Thanks

They were 502 twin carb supercharged. Very reliable and yes the new 575SCI is very close to the 600SC.Drive abiltiy of these engines was o/k not great. That is why Mercruy Racing put injection on them.

Different sized blowers though. That 575 has a much smaller blower.

HP, are you thinking of getting a new motor for your boat? I have some info you might be
interested in.

RonS, nope, just exploring the idea of a bigger faster boat

Thats always how it starts is'nt it. Hey are you intrested in running Oshkosh or Sturgeon Bay this year? There were two 280's that ran Oshkosh last year.