new water pump

[peonleon2]

i need a new water pump and dont know what one i need. there are 2 options one with a bypass and one without. i have a 1968with the 91 upgrades . it has the 1275 motor in it. im still new and learning. thanks.

[Cheleker]

Most likely no bypass. Look at the water pump (towards the back near where the lower hose attaches) and see if there is a very short hose going vertically up from the pump to the underside of the head. If you don't find one, then no-bypass.