Join Date: Jun 2002
Location: Killingworth, CT
On an SBF, there are three "heater" size hoses.
Water pump - lower outlet -> to heater core
Water pump - upper outlet -> to thermostat housing ("L" shaped molded hose)
Intake manifold - front x-over -> heater core
I've never seen the rear crossover used for anything other than sensor bungs on older cars. Usually, the only things in the front x-over are the heater hose nipple and the temp gauge sensor.
If you're not going to use the heater, which is rather useful for defogging the windshield, loop the lower w/p to the front intake x-over, or cap the waterpump and put a pipe plug in the intake.
"We've always done it that way" - the most dangerous words ever spoken
71 Mach 1