On a 87 K5 are the hose's going to the heater core suppose to be 2 different sizes?
CK5
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HEATHER CORE HOSE'S ?
- Thread starter brans87
- Start date
3/4" and 5/8"
Yep and yep.
Those #'s meaning left to right looking at them from front bumper?
Huh??
The smaller (5/8") should be supply to heater core from intake manifold. The larger (3/4") should be return to radiator or port on water pump.
