Flathead Ford 4 Ring Set, 3.188 Bore, +.060 Oversize
Flathead Ford 4 Ring Set, 3.188 Bore, +.060 Oversize
Speedway Motors

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#91015904

Flathead Ford 4 Ring Set, 3.188 Bore, +.060 Oversize

  • Fits 3.188" bore Speedway Custom 4 Ring Pistons for Flathead V8
  • Cast Iron top and 2nd groove rings
  • +.060" oversize
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$68.99

/set

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Product Summary

3.248" Piston Ring Diameter

  • Fits 3.188" bore Speedway Custom 4 Ring Pistons for Flathead V8
  • Cast Iron top and 2nd groove rings
  • +.060" oversize
  • Over sizes based off original 3.188" bore size
  • Set of 8
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Key Specs

MFG. Part #91015904
BrandSpeedway Motors
Piston Ring Diameter3.248"
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Speedway Motors 91015904 Details

Flathead Ford 4 Ring Set, 3.188 Bore + .060 Oversize

  • Fits 3.188" bore Speedway Custom 4 Ring Pistons for Flathead V8
  • Set of 8
  • Cast Iron top and 2nd groove rings.
  • +.060" oversize
  • Oversizes based off original 3.188" bore size.

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.
CA Prop 65
CARB warning

Speedway Motors 91015904 Specifications

KEY SPECS
MFG. Part #91015904
BrandSpeedway Motors
Piston Ring Diameter3.248"
GENERAL
Top Ring MaterialCast Iron
Second Ring MaterialCast Iron
Sold in QuantitySet

Ratings & Reviews

5

3 Reviews

Overall Assessment

Customers highly recommend our rings, emphasizing their high-quality and functionality. They are the perfect match for Egge pistons and compete where standard sources don't cater, such as in oversize rings for antique Ford 8n tractors with bored-out V8 pistons. Our rings significantly improved engine performance, making it run beautifully, proving our product's superiority and utility.

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5

3 reviews

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I'll buy again

5.0

4 months ago

Cowdog

Carlsbad NM

Verified

Used in place for sleeves ...not in yet

Would Recommend

Excellent rings for my Flathead

5.0

4 years ago

Tommy

Middle , Tennessee

Verified

These match my pistons from Egge,,,,I believe I will be very happy .

Would Recommend

Great resource for this part

5.0

9 years ago

55victor

Sacramento, CA

Verified

These particular oversize rings are not available through the regular Ford tractor sources. The antique Ford 8n had been previously bored out and Ford V8 pistons pistons were installed. The Speedway rings were the right choice. The engine now runs beautifully! Thanks.

Would Recommend

Showing 3 of 3 reviews

Questions & Answers

3 Questions • 3 Answers

What is the recommended end gap for racing applications? I am fitting these to an 8BA circle track race engine for circle track use. I'll be using 112 octane fuel with a .060 oversize bore

by 12Car

• 8 years ago

1 answer

View Answer

Ring thickness. Hi! What are the ring thickness on this set? Regards Fredric

by Fredric

• 12 years ago

1 answer

View Answer

Are these .060 over (3.248) or .125 over (3.313)? the description is messed up. Are these .060 over (3.248) or .125 over (3.313)? the description is messed up.

by Jonny30

• 12 years ago

1 answer

View Answer

3 of 3 questions shown

Fitment

  • 221 Ford Flathead V8

  • Ford Flathead V8 17 Stud 221 18

  • Ford Flathead V8 21 Stud 221 40

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

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  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

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  • 239 Ford Flathead V8

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  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

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  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 239 Ford Flathead V8

  • 239 Ford Flathead V8

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