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Product Summary

Single Spring Valve Spring Style

  • Works with stock '49-'53 Ford retainers
  • Set of 16
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Key Specs

MFG. Part #450185G
BrandSpeedway Motors
Valve Spring StyleSingle Spring
Outside Diameter1.02"
Installed Height2.00"
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 450185G Details

Our complete line of valve train parts to help your flathead Ford V8 run on unleaded fuel. These heavy duty single valve springs are made from top-quality chrome silicon steel and are designed to work with stock 1932-1953 Ford retainers.

  • Recommended for most street performance 1932-53 Ford/Mercury Flathead V8s
  • Chrome silicon material delivers reliable performance
  • Proper seat pressure for most street and street/strip Flathead cams
  • Installed Height: 2.00"
  • Seat Pressure: 85 lbs @ 2.00" installed height

Note: "Full Race" cams should be paired with our 450-4005 dual valve springs.

Charts

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors 450185G Specifications

KEY SPECS
MFG. Part #450185G
BrandSpeedway Motors
Valve Spring StyleSingle Spring
Outside Diameter1.02"
Installed Height2.00"
GENERAL
Seat Pressure85 lbs. at 2.00"
Sold in QuantitySet
NotesSet of (16)

Ratings & Reviews

4.8

11 Reviews

Overall Assessment

Customers appreciate the product for its performance and high-quality material, finding it particularly useful for upgrading vintage vehicle models like the 1939 Flathead. Buyers commend its reliability, considering it a go-to for hot rod engine rebuilds. Compared to other options, the product stands out due to its confirmed efficiency and practicality in design process changes. Both new and returning customers indicated a preference for this product when exact specifications were needed. In summary, our product has a strong reputation for quality and reliability among dedicated patrons.

4.8

11 reviews

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Filter by Ratings

I would buy this again

4.0

5 months ago

Freddyfairlane

Winnipeg Canada

Verified

Is a decent replacement for rebuilding my motor

Would Recommend

Would buy again

5.0

8 months ago

Freddyfairlane

Winnipeg Canada

Verified

Nice upgrade from old springs

Would Recommend

Very satisfied with the product

5.0

8 months ago

Eric

Napierville, Québec, Canada

Verified

Replaces the original valve springs very well

Would Recommend

yes would buy agin

5.0

2 years ago

shep

skaneateles ny

Verified

worked well

Would Recommend

Great product

5.0

3 years ago

Joel

Craven, SK

Verified

Used these as an upgrade on my 1939 Flathead

Would Recommend

yes

5.0

5 years ago

Rich

petaluma CA

Verified

working on old fords

Would Recommend

I will buy again

5.0

7 years ago

flathead

ohio

Verified

Good part

Would Recommend

Sure

5.0

8 years ago

Keith

Canada

Verified

Engine rebuild

Would Recommend

Haven't fired it yet but they will be fine.

4.0

8 years ago

Ken

Seattle Washington area

Verified

I like your products but when a person is building a hot rod like I am now it is a design process that sometimes changes direction so with the 90 minimum for free shipping, tax anyway, and the cost of sending the occasional thing back I will only be buying items that I can't get anywhere else or special occasions. So thanks. Ken

These Isky springs are every thing they are suppose be

5.0

9 years ago

Paul

Jefferson, WI

Verified

Another great product from Speedway

Would Recommend

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