Evaporator core bolt size? - Chevy Impala SS Forum
 
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post #1 of 5 (permalink) Old 08-28-2017, 12:46 AM Thread Starter
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Evaporator core bolt size?

Odd question, I know.

What size/length are the bolts that hold the suction hose and the metal hose where the orifice tube goes to the evaporator core of a TBI wagon?

All the hardware is long gone after the car got taken apart.

Ray
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post #2 of 5 (permalink) Old 08-28-2017, 01:42 AM
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I can't tell if it is correct but the gm parts book suggests they were originally studs with M8-1.25 thread nuts
Near as I can see, the overpriced stud is 52455430

Maybe see if a m8-1.25 screw threads in .
If it does then measure the hole depth and hose end thickness ?


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post #3 of 5 (permalink) Old 08-28-2017, 01:57 AM Thread Starter
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I see I'm not the only late nighter here. That's right - they were studs... I remember having nuts on them. I'm sure a bolt will thread in, there's plenty of meat on the hose fittings for it to grab.

Thanks! $17 for a stud is hilarious. Even my employee cost will probably be $12. No thanks on that one...

Ray
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The Roo Wagon

5.7L Aluminum LS1 | BTR Stage IV Truck Cam | T56 | 4.56 gears | Custom 3.5" Driveshaft w/1350 U-joints | Impala SS Rear Discs on wagon axle | Drop Spindles | Springs F Moog 5662 R Moog CC501 | 2.5 Turn Steering Box | Black U2-55 22x9.5 on all 4 corners | TBI 9C1 Gauge Cluster | Bonneville Seats w/brackets | Lots more...
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post #4 of 5 (permalink) Old 08-28-2017, 07:29 AM
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Once you determine the thread and size, a local screw supplier should be able to fix you up. Something like that should be less than a dollar for both the studs and flange nuts. Your other option is hit the junk yard. The 94-96 cars should have the same nuts and studs.

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post #5 of 5 (permalink) Old 08-28-2017, 08:14 AM
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As an FYI for this thread, I recently got some hardware that I needed from Tractor Supply. They've got some of the old school bins and a scale.

I hadn't thought about Tractor Supply until I spoke with my dad concerning my need for a few bolts here and there, and I didn't want to go to Home Depot or Lowes and have to buy a package of something where I only needed one, and I didn't want to pay a ridiculous amount for some basic fasteners.

It reminded me as a kid going into the local hardware store with dad and getting stuff for the weekend work around the house.

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