convert idiot lights to gauges

[bigwilly]

I have a 65' skylark with the 310 wildcat (300) It is factory idiots lights ...I want to run gauges...alternator , water temp, & oil pressure.......

for the water temp...can I use the existing temp sending unit and just connect wire from idiot light to gauge ?

for the alternator......how do I convert to gauge ?

foe the oil pressure......I know run a hose to gauge but where do I connect to engine & what type send unit ??

as always thank you all for the info & suggestions

[roadmouse]

"for the water temp...can I use the existing temp sending unit and just connect wire from idiot light to gauge ?"

no you can not, idiot light work with a sort of on off temp sender, you need a sender specific for gauge