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Old 10-28-2014, 11:53 AM   #1
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Default Yet another DIY reroute RIW question

Does anyone know if this "Chevrolet" spacer would fit? You gotta love the O-ring seal, and the full support of the water neck flange.

Jegs Spacer

By "fit", I mean Center-to-Center on the mounting holes, and T/Stat diameter.

Regards, DNM
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Old 10-28-2014, 11:59 AM   #2
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that is really cool.
looks just like the one we all used to get from Moss, except even fancier with the o-ring.

would need dimensions to confirm fitment though.
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Old 10-28-2014, 12:01 PM   #3
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Doubt anyone has used it, but for $31 it'd be pretty cheap to buy it and lay it on a Miata thermostat gasket.
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Old 10-28-2014, 12:03 PM   #4
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I guess you can google around for dimensions of chevy small block/big block thermostat dimensions and get an idea of the size of this thing.
Or call JEGS?

if this thing fits, you get 100 internet points
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Old 10-28-2014, 12:14 PM   #5
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Yeah, I'd call JEGS for a drawing. Hole centers is all you care about, you can always use a GM T-stat. Could be a big win!
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Old 10-28-2014, 12:18 PM   #6
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Tell them it's for a Yukon, we all use their hoses anyways.
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Old 10-28-2014, 12:28 PM   #7
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Based on a thread in the locost forums, it appears to be 3.2" (~81.25mm) center to center.

LocostUSA.com • View topic - Small Block Chevy Thermostat Housing Bolt Hole Centers?
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Old 10-28-2014, 12:34 PM   #8
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Huh, this is probably why we haven't found it before. Miata is closer to 2.65".

Miata vs. 3.2"

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Old 10-28-2014, 12:41 PM   #9
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bahhh, that's a bummer.
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Old 10-28-2014, 12:47 PM   #10
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Bandit: I thought it might be too big.

18: The Moss part is still available. You have to order by P/N. See This Thread

I may get the Moss and turn for an o-ring, maybe one on both faces. Then no scraping when the T'Stat has to be changed. My Expy uses an o-ring at the T'Stat face, I just need to see how it is done when I change it. I mean, with the Moss part, one has to machine the stat grove anyway.
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