AN plumbing questions

74marolt · 07-05-2012, 05:45:04 PM

I am building a new engine for my car. I want to do all the lines in braided stainless. How do i figure out what size fitting to order for the manifold and fuel pump and all that? Heres the lines that i want done:

Upper radiator hose
Fuel pump to regulator, then to holley carb - (already have dual braided inlet for carb)
Water lines on intake (Deleting heater and want water holes on intake running to each other with braided line)
Going to have some sort of oil collection system off of a valve cover breather and want that in SS braid also.

5spd540 · 07-05-2012, 05:52:44 PM

Measure the hose
-6 is 3/8
-8 is 1/2
-10 is 5/8
And so on

74marolt · 07-05-2012, 05:57:08 PM

Where is a good place to find out all the port sizes of an edelbrock intake? And isnt fuel pump and NPT?

Turbo70Camaro · 07-05-2012, 06:11:29 PM

Go to your favorite parts store and pick up some 1/8", 1/4" 3/8" and 1/2" NPT brass fittings (real cheap) and test each port.

muscl car · 07-05-2012, 06:18:14 PM

if you're planning on making your radiator hoses into AN you're looking at mega bucks with the fittings and hoses as they range from 18AN to 22AN

74marolt · 07-05-2012, 06:22:08 PM

Quote:

Originally Posted by muscl car

if you're planning on making your radiator hoses into AN you're looking at mega bucks with the fittings and hoses as they range from 18AN to 22AN

Was planning on -16, not big enough? Should be about $100, not sure how to go from the radiator to AN though.

muscl car · 07-05-2012, 06:27:25 PM

Quote:

Originally Posted by 74marolt

Was planning on -16, not big enough? Should be about $100, not sure how to go from the radiator to AN though.

with specialty fitting threaded onto the radiator after removing the stock water neck and then using the same fittings in the thermostat hsg .you're looking at $65 or more for ea fitting then about $100 for just the hose

74marolt · 07-05-2012, 06:29:28 PM

Quote:

Originally Posted by muscl car

with specialty fitting threaded onto the radiator after removing the stock water neck and then using the same fittings in the thermostat hsg .you're looking at $65 or more for ea fitting then about $100 for just the hose

The hose is $30. Fitting for block from speedway is $35...

muscl car · 07-05-2012, 06:42:27 PM

are you talking about this style with the worm clamp hose ends ???... i was talking about real AN fittings were you need a wrench to remove them

http://i.ebayimg.com/00/s/NDAwWDQwMA...d=880000500 7

5spd540 · 07-05-2012, 06:47:14 PM

Yes real An fitting will not be clost to 100$ for the fitting for a rad it will be a lot higher than that.

74marolt · 07-05-2012, 06:52:33 PM

Quote:

Originally Posted by muscl car

are you talking about this style with the worm clamp hose ends ???... i was talking about real AN fittings were you need a wrench to remove them

http://i.ebayimg.com/00/s/NDAwWDQwMA...d=880000500 7

No, real AN fittings.

http://www.summitracing.com/parts/EAR-403016ERL/ $48 not $30

I cant find the neck i found earlier.

74marolt · 07-05-2012, 06:53:47 PM

Ok, so maybe not do the radiator hose, What about the fuel line and Intake lines?

mikespeed95 · 07-05-2012, 06:55:04 PM

AN is short for Army/Navy universal sizing.

They have a specific thread for AN, however, the sizes are in 16ths. A -3 would be 3/16, -8 would be 1/2 etc etc.

As stated the fittings to run a true AN style line for the radiator will cost you a couple hundred dollars to get both hoses setup right, and that is more or less for high-stress racecar applications where you cannot afford to have a hose blow off.

So if you're getting a bunch of fittings from the hardware store that are brass, running a specialty AN line doesn't really make any sense.

If you're trying to clean up your engine bay, a simple cheap and entry level way into doing this would be a push-lock style line and fitting setup, no clamps, and you can get them in several tasteful color setups or all black/silver/whatever.

5spd540 · 07-05-2012, 06:58:13 PM

Quote:

Originally Posted by 74marolt

Ok, so maybe not do the radiator hose, What about the fuel line and Intake lines?

You just need to decide what all hoses you want to do and then see how much they are

old zeder · 07-05-2012, 10:10:34 PM

Going to cost a lot more then you think, and if you damage any fittings then it will cost even more. You will have to take your time and be very carful. And they look better when you use Billet Specialties clamps on them, especially on the larger heater & rad hoses. If you mark them up it will look like crap. I didn't do the rad hoses.