Liam's 73 V20

[bksah2]

not sure but i dont think the inline 6cyl. merc. has a heat exchanger the merc 4cyl. 470 does have a heat exchanger

[Liam]

Originally Posted by bksah2

not sure but i dont think the inline 6cyl. merc. has a heat exchanger the merc 4cyl. 470 does have a heat exchanger

it definitely is FWC and has a heat exchanger,i was told by the seller it always was?

[spareparts]

post up some more pics of the engine, you've got me curious

[Liam]

Originally Posted by spareparts

post up some more pics of the engine, you've got me curious

I will take a couple of pics later today

[Liam]

Here are pics of the motor,some of the paint flaked off the heat exchanger when I pressure washed it,is it possible/worth repainting over the copper? and what would be the paint to use,TIA

[bksah2]

Well I must say this is a first for me I have never seen a inline 6cyl that had a heat exchanger on it ..is the motor running antifreeze in it on a closed loop

[Liam]

Originally Posted by bksah2

Well I must say this is a first for me I have never seen a inline 6cyl that had a heat exchanger on it ..is the motor running antifreeze in it on a closed loop

yes the lower exchanger hose( visible in 2nd pic) runs under the engine and up the other side to the water pump. The smaller hose seen on the right of the exchanger is the raw water feed.
Sterndrives are new to me, I have only ever had outboards in the past.