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#91015703
$28.99
/each
In Stock
Quantity
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Universal Fit, 2.13" Overall Diameter, .56" Body Length
| MFG. Part # | 91015703 |
| Brand | Speedway Motors |
| Temp. Range | 180 degrees |
| Gasket(s) Included | No |
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855.313.9176Quick and Easy Returns
Return PolicySpeedway takes a quality 330-180 high flow 180° thermostat, then modifies it to function properly in high RPM, high flow applications. They feature a balanced sleeve design and are strongly recommended for any performance application. Fits most domestic applications.
Learn more about the importance of the thermostat with cooling systems and how they work by reading our tech article, Cooling System Principles.
WARNING:
Cancer and Reproductive Harm – www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | 91015703 |
| Brand | Speedway Motors |
| Temp. Range | 180 degrees |
| Gasket(s) Included | No |
| GENERAL | |
| Overall Diameter | 2.13" |
| Overall Height | 1.58" |
| Body Length | .56" |
| Body Diameter | 1.57" |
| Sold in Quantity | Each |
| Notes | There are three bypass holes in the center area of this thermostat to allow water to circulate prior to the actual "opening". |
4.9
74 Reviews
The product has been highly lauded for its efficiency and quality performance across multiple optimal applications. It has won customers over for its high flow, opening at the correct temperature range, and maintaining consistent engine temperatures. The thermostat has been noted for having a better build than standard, stock thermostats, and for contributing to an overall cooler and better functioning vehicle. Its easy installation process and pricing were also praised. Several customers would readily repurchase or recommend the product, highlighting its reliability in comparison to competitors. Some customers appreciated the product's role in their custom engine builds and noted its superior alternative to pricier options. A recurring positive is the role it plays in preventing overheating issues, indicating its high practicality and safety features. Overall, users emphasized the thermostat's value for money, performance quality, and effectiveness.
4.9
74 reviews
5
69
4
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Most Liked Positive Review
5.0
Did the trick
I had a similar high flow thermostat in my car and it seemed that while I was driving it would shut and once I was idling at a light it would open. I don't know for sure if that was the case or if it was air pockets but I read a lot and heard that the ones with holes like this one aid in getting rid of air pockets and increased flow. I think the only thing you are giving up is a slightly quicker warm up time. After installing and testing in the car (without driving) it stayed below half instead of creeping higher and then dropping. After road testing it did seem to work better than my other one without the holes. My gauge fluctuates more than I think it should, just something to get used to. My only gripe so far is that I think I can hear a high noise of the water flowing through the holes.
Most Liked Negative Review
3.0
works as stated for the most part but...
It comes with no instructions, if you install it without checking the if the cups lower slots are lined up with the flow channels it'll restrict the flow n heat up fast n keep going up!! 3 laps in 90 degree weather I came in over 230 degrees. After we removed it and figured out to turn the brass cup to line up the flow channels, reinstalled it then it ran much better. The main started at 87 degrees air temp n the engine ran 170-180 till the first yellow. It heated up to 210 then cooled a little during the race, we came in at 230 degrees. 36 degree full advance on the timing The stat needs to be a lower opening temp, I'd like to see it open at 160 instead of 180. I think it would work better.
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I would buy again but from someone else with faster deliver.
5.0
a month ago
Unclejack
Clermont Ga
Verified
On my 67 Chevelle with a high performance 454
I would buy again !
5.0
2 months ago
Sam
Villa Ridge ,MO
Verified
Good Quality !
Would Recommend
Works very well
5.0
3 months ago
Brian H
Blanchester ohio
Verified
Keeps the car cooler especially using a high volume water pump as well.
Would Recommend
Good product
5.0
4 months ago
FRANKO
Forestdale, MA
Verified
Great, ontime
Would Recommend
Excellent product. Would definitely buy it again.
5.0
5 months ago
Al
Brea, Calif
Verified
Excellent product.,
Would Recommend
yes
5.0
6 months ago
larry
utah
Verified
used it and works fine
Would Recommend
Cooled perfect
5.0
6 months ago
Houston
Iowa
Verified
Easy fit
Would Recommend
If only…
3.0
8 months ago
J J
Santa Rosa
Verified
This got lost in the mail.
Would Recommend
Great Product and Great Service
5.0
9 months ago
MOOOOK
Midlothian
Verified
Quick delivery and tstat works great.
Would Recommend
Yes
5.0
a year ago
Tim
St Paul Mn
Verified
Worked
Would Recommend
Showing 10 of 74 reviews
15 Questions • 10 Answers
Will it fit 292 motor C20 chevy pickup
by MoonMan
• 7 years ago
1 answer
View Answer
Hi, 1983 Chevy C10. 350 stock engine/stock timing, dual exhaust, no cat converter... 30/70 antifreeze solution. 3 core aluminum radiator with 2ea 12" electric fans and nice aluminum shroud. Using old school 180 degree thermostat. Engine cools great on open road. Once stopped for 3 minutes or so at idle it heats up into 230 degrees while stopped at idle with A/c running. thnx in advance, ........nikki Will this thermostat help keep me cool at idle.
by nikki
• 7 years ago
1 answer
View Answer
Will this fit a 1972 ford 460?
by Truggy
• 9 years ago
1 answer
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Looking at the picture I noticed holes drilled in the top of the thermostat. Are the holes to assist flow if you are not running a by-pass????
by FOG
• 9 years ago
1 answer
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Would this highflow thermostat work with my Chevy k20 Pickup truck..?
by Tyler
• 10 years ago
1 answer
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I see this will not work on a flathead Ford with stock heads. Will it work on a flathead with Edelbrock heads?
by Flathead Jim
• 10 years ago
1 answer
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I have a modified AMC 401 motor it has the power but I do not race it, it also so has a heating problem should I use this modified thermostat or a regular Robert Shaw unit with out the three hole modification.???
by matador-man
• 10 years ago
1 answer
View Answer
What is a balance sleeve and how does it work.
by Keep cool
• 11 years ago
1 answer
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will this fit my 1952 flathead truck??
by lippy
• 12 years ago
1 answer
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have a 78 ford with a 400 in it. original therm. had bypass on the end does this fit that application?
by dautotow
• 12 years ago
1 answer
View Answer
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