MOROSO 63463 Water Outlet Filler Neck -20AN Fitting & Two 38 NPT Female P

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MOROSO

MOROSO 63463 Water Outlet Filler Neck -20AN Fitting & Two 3/8" NPT Female Ports

Part Number: 63463
Manufacturer: MOROSO
Description : Water Outlet Filler Neck -20AN Fitting & Two 3/8" NPT Female PortsKeeping your high-performance engi

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Sale Price: $74.78

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Description

Product Note:

Water Outlet Filler Neck -20AN Fitting & Two 3/8" NPT Female Ports

Keeping your high-performance engine running cool at higher speeds takes more than a good, clean radiator. In fact, operating your engine at higher RPMs for extended periods of time can actually hurt the cooling system’s efficiency. The reason lies with the speed of water as it travels through the engine.

As engine speed increases, so does water pump speed. The faster the engine, the faster water is pumped through the cooling passages of the block and head. At first, this may sound like a positive thing. And for drag racing applications where the runs are short, it is. However, for oval track racing and street performance applications, it’s not! Water needs to absorb heat as it travels through the engine. If traveling too fast, water cannot absorb heat and carry it to the radiator. Additionally, a water pump that “over-speeds” is prone to cavitation.

There are a few simple modifications that can be done to reduce water velocity. One is to change the crankshaft and/or water pump pulleys to obtain slower speeds and prevent water pump cavitation. The other is to install aluminum restrictor plates under the water outlet on the intake manifold. Both allow the coolant to absorb more heat so it can be carried to the radiator and released to the atmosphere.


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MOROSO 63463 Compatibility With 1983 GMC Caballero ALL...

If this is not your vehicle, please change the vehicle above to confirm it will fit your application as well.

Year Make Model Trim EngineVehicle Fit Notes

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1978

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1978

 

GMC

 

Caballero

 

ALL

 
3.3L V6,
3.8L V6,
4.3L V6
 
GMC
Caballero
ALL

3.3L V6,
3.8L V6,
4.3L V6
w/ 90¡ V6 Chevy Motor
For 90¡ V6 Chevy Intake Manifolds
 

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