Product Summary

  • Thermostat is specifically designed for the 1949-1953 Flathead Ford V8 engine
  • It sits directly in the water outlets on the top of the head, with the hose coming down over the water outlets, holding the thermostats in place
  • This OEM replacement is available in 160° F or 180° F temperatures
  • Every flathead engine needs two thermostats
See more details

Key Specs

MFG. Part #
BrandSpeedway Motors
Temp. Range
Gasket(s) IncludedNo
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Details

Don't let your old flathead boil over – keep it running cool with new thermostats from Speedway. These thermostats sit in the water outlets on the top of the head, with the hose coming down over the water outlets, holding the thermostats in place. Remember, every flathead needs two of these!

  • OEM replacement
  • Two thermostats required for each engine
  • Available in 160° F or 180° F
  • Fits 1949-1953 Ford and Mercury flathead V8s

Learn more about the importance of the thermostat with cooling systems and how they work by reading our tech article. Cooling System Principles.

 

Specs


Specifications

KEY SPECS
MFG. Part #
BrandSpeedway Motors
Temp. Range
Gasket(s) IncludedNo
GENERAL
Overall Diameter
Overall Height1.48"
Mounted Height.81"
Material TypeSteel
Sold in QuantityEach

Ratings & Reviews

4.9

17 Reviews

Overall Assessment

Customers highly recommend our thermostat for its perfect fit, especially for Flathead engines, citing its straightforward installation process. It's lauded for its exacting construction quality, practical temperature range choices, consistent temperature containment, and solid performance, making it ideal for both hot rods and vintage models like the '49 Flathead V8. Some users suggest adding gaskets for an improved experience. Consumers appreciate its precision, noting that the thermostats open within a degree of each other. In terms of competitors, the superior construction and performance of our thermostat stood out, contributing to their satisfaction.

4.9

17 reviews

5

15

4

2

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0

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Summers in Oklahoma are rough Keep spares on hand.

4.0

2 years ago

Robert

Tulsa Oklahoma

Verified

Spare replacement for existing thermostats just incase.

Would Recommend

Iwould buy this again

5.0

2 years ago

Lonnie

Sequim ,WA

Verified

as expected

Would Recommend

Great fit for my '49 Flathead V8

5.0

4 years ago

Pop pop

Burgin, KY

Verified

Replaced water pumps and thermostats in my '49 Flathead V8

Would Recommend

I would recommend this one

5.0

4 years ago

Terry

Naperville, IL

Verified

It's a thermostat so not much to get excited about. Construction looks really good.

Would Recommend

Exactly as described. Fast shipping.

5.0

4 years ago

Bob in El Paso

El Paso, Texas

Verified

Works perfect on my hot rod flathead

Good product

5.0

5 years ago

Kent

Nh

Verified

Works great and fits perfecting in 53 flathead

Would Recommend

I would buy this product again

4.0

5 years ago

Al

Sun city west. AZ.

Verified

It was great you could buy different temp. Range.

Would Recommend

Product worked as prescribed! Good job!

5.0

7 years ago

Phil

Houston Tx.

Verified

Installed in 41 Ford, works great.

Would Recommend

Thermostat appears correct for the flathead

5.0

8 years ago

Chuck

San Jose, CA

Verified

Suggest that you drill two 3/16" holes in the flange to allow some coolant to by-pass.

Would Recommend

Constant temp.

5.0

8 years ago

Jackson

Fredericksburg Va.

Verified

These thermostat work very well with a flathead motor !

Would Recommend

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Showing 10 of 17 reviews

Questions & Answers

4 Questions • 6 Answers

Does this need a gasket

by Tim

• 9 years ago

1 answer

Will this fit a chevy 350 water outlet?

by Annee

• 10 years ago

1 answer

What temp of thermostat do I need? since you offer two different degree's of t-stat... what is the correct one to get? the 160 or the 180? I have a 49 flathead in my car that I just bought, and I am unsure of what the original one is. We live in Kansas and it gets hot in summer (over 100 degrees# but it get cold in winter as well. #below freezing) I do drive my car all year round.

by HeroDave

• 13 years ago

2 answers

Is there a different spec thermostat for the 1946 Ford flathead than the one specified for the 1949-'53 flathead?

by mack the knife

• 15 years ago

2 answers

4 of 4 questions shown

Customer Impersonation Script