LT1 WATER PUMP OUTLETS HELP

[bagged85cutty]

I AM DOIN A CORVETTE LT1 SWAP ON MY V6 CUTLASS

I JUS NOTICED THE WATER PUMPS HAD SOME EXTRA OUTLETS AND IM NOT SURE WHERE THEY ARE SUPPOSED TO HOOK UP TO

http://www.summitracing.com/parts/ACF-12527739/?rtype=10

IM TALKING ABOUT THE EXTRA OUTLETS ON THE BOTTOM AND BEHIND THE THERMOSTAT HOUSING
AND THERI IS ALSO ANOTHER ONE AT THE BOTTOM RIGHT OF THE PUMP BUT ITS NOT SHOWN ON THE PIC

I WOULD JUST LIKE TO KNOW WHERE THEY LEAD AND IF THEY ARE ABSOLUTELY NEEDED THANK YOU

 

[stuckincincy]

The two on the left in the picture (pass side) are the heater supply and return lines. If the one not shown is an NPT threaded hole it is probably for the coolant temp sensor for the ECM.

 

[bagged85cutty]

The two on the left in the picture (pass side) are the heater supply and return lines. If the one not shown is an NPT threaded hole it is probably for the coolant temp sensor for the ECM.

OK NOW ARE THOSE ON THE LEFT NEEDED??
COULD I JUST CONNECT THE 2 WITH A HOSE IF I DONT WANNA RUN A HEATER??

 

[stuckincincy]

You can connect them with a hose or plug them.

 

[bagged85cutty]

You can connect them with a hose or plug them.

but isnt it bad to plug them?
isnt the coolant supposed to flow thru them??

 

[stuckincincy]

Plugging them with rubber caps shouldn't be a problem. Replacement radiators often come with hose nipples which may not be used depending on the application and they include the rubber caps to block these ports. Personally I would connect them together to provide some continual bypass flow.