Big Block Chevy Water Pump Bypass Hose

The bypass hose is not necessary.

Big block chevy water pump bypass hose. Kits come complete with all necessary bolts gaskets and hardware. Since the bypass hose forces hot water back into the water pump before it can go through the radiator it will actually. If you have a crate engine with the vortec block or heads and no provision in the water pump or manifold for a bypass you can drill three or four 1 8 diameter holes in the thermostat to provide a bypass. Bypass systems use a thermostat while non bypass doesn t.

Ok we finally have a reasonable answer to this question. And they use a bypass hose similar to a big block on factory engines. There is no provision in either the block or the heads for the bypass. Shop 454 chevy big block v8 thermostats housings outlets hoses parts and get free shipping on orders over 99 at speedway motors the racing and rodding specialists.

In fact one went so far as to say that his big block engines run cooler without it. Larry scott asks is a coolant bypass hose really necessary. This is from 2 very reputable engine builders. Im building a bbc and i have a question about the ugly little bypass hose that goes from the thermostat housing to the water pump.

It is not harming anything. Big block chevy coolant bypass hose delete. 08 13 05 09 50 am post 756901 in response to r66ss i just noted that in the bill mitchell catalog all of their bbc motors which they claim are pump gas street strip have no provision for a water pump bypass hose. It would look so much better if i could just plug the holes instead.

Also a small block chevy has no bypass. Neither builder uses it. I know i have posted about this before but i really need to understand on big block chevy is the coolant bypass hose neccesary or is it only to help get a little heat for heater until thermostat opens if it is only for the heat than i assume it is ok for the pump to spin without moving coolant i guess i always thought it was a relief for the water pump until thermostat opens either way what do. Bbc water pump by pass hose needed.

Small blocks have a bypass passage cast into the water pump and block. 454 chevy big block v8 thermostats housings outlets hoses parts in stock with same day shipping. That hose allows water to circulate within the block before the thermostat opens. Big blocks don t and need this hose or something similar.

Experience horsepower gains of up to 15 horsepower while increasing water circulation. A question about the small hose going from the front of the intake manifold to the water pump on a big block chevy.