Size of water pump outlet for rad hose....

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Feb 18, 2009 | 06:52 PM

Charged350

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From: Queens, NY

Car: 87 IROC Z28

Engine: Custom Forged 355

Transmission: 700R4

Axle/Gears: 9" 4:11's Detroit Locker

Size of water pump outlet for rad hose....

the bottom rad hose, where it comes out from the water pump what size is that, i jus got a new electric water pump but it didnt come with the fitting for the hose, gotta buy it separate, they sell 3 differ ones, 1 1/4 1/ 1/2 and 1 3/4...need to kno which one i need b4 i order it.....the car has the stock pump now ....ive looked on google for 3 hours now...and nothing....so if anyone knows or has a spare pump layin around or owns an electric one that has the info please let me know....thanx again.

Feb 18, 2009 | 08:53 PM

8t2 z-chev

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From: belle fourche,s.d.

Car: '82 z28

Engine: L83 5.7

Transmission: 700r4-1985

Axle/Gears: 3.42 posi

Re: Size of water pump outlet for rad hose....

1 3/4"

Feb 19, 2009 | 05:17 PM

Charged350

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Supreme Member

iTrader: (1)

Joined: Dec 2003

Posts: 1,342

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From: Queens, NY

Car: 87 IROC Z28

Engine: Custom Forged 355

Transmission: 700R4

Axle/Gears: 9" 4:11's Detroit Locker

Re: Size of water pump outlet for rad hose....

thank you very much man

Feb 27, 2009 | 10:55 AM

I H8 WWD

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From: Cleveland, Ohio

Car: 89' IROC-Z

Engine: LO3

Transmission: 700R4

Axle/Gears: 10-Bolt/2.73

Re: Size of water pump outlet for rad hose....

I didnt want to start a new thread so I figured this would be sufficient.

What is the size of the NPT fitting in the rear of the intake manifold for the rear crossover? The fitting for my water pump was 1/2", but it seems smaller than the water pump fitting? Or is it the same size?