Upper radiator hose tee/bleeder
The hose fitting shown above is for installing the LS1, LS2, or LT1 steam vent tube into the upper radiator hose.
The upper fitting (petcock valve) allows bleeding air out of the cooling system. It uses a standard 1/8 npt fitting.
The hose fitting for LS1 engines is normally 5/16" on early LS1 engines, but later engines (LS2) use a 1/4" fitting. LT1 engines use a 3/8" fitting. The fittings are standard 1/8 npt fittings, and can be replaced for other applications.
Also available are steam vent tees with sight glasses to monitor coolant foaming and air in the system.
The hose tee/bleeder for the LSx/LTx shown in the photograph above is for 1-5/16 hoses. We also make hose tee/bleeders in the following sizes:
We also have transitional hose tees: See Transitional Hose Tees
If you need a size that is not listed above, let us know, we make these parts in-house.
New products. Transitional hose splicers, and
coolant sight glasses and transitional coolant sight glasses.
Coolant sight glass with air bleed fitting.
Bleeding air out of cooling system.