RP Top Water Outlet Manifold.

[Colin Reed]

Hi Russell,
There Should be no effect on the solder, any where in the block or head i have normally fitted Horizontally It just means you can use a longer length.
Mostly have used on Marine engines which  have a heat exchanger running fresh water.
Zinc is used in salt water.
On Car Engines there is a lot of stray voltage ie spark plugs need to be grounded to work, generators etc
Marine engines everything earths  back to the Battery through separate leads

Hope That helps
Colin
NZ