Water pump pulley OD
What diameter is the stock LS water pump pulley?
Finding a reference motor in the UK is nearly impossible, and I have a new water pump that doesn't have a pulley fitted.
I can machine one myself, but need an approximate OD to make it easier...
Too long a dwell time can significantly decreases efficiency as temp delta decrease early on it the radiator passage….whereas faster flow increases temp delta between coolant and air which increases cooling efficiency. So, I would err on side of increase flow speed.
So, anyone know of smaller pump pulley suppliers without having to CNC my own?





