Rings for Offenhauser 4-Ring Flathead Ford Pistons, 3.248 bore

#56042620

Rings for Offenhauser 4-Ring Flathead Ford Pistons, 3.248 bore

Name: Rings for Offenhauser 4-Ring Flathead Ford Pistons, 3.248 bore
Brand: Offenhauser
SKU: 56042620
Price: 84.99 USD
Availability: InStock
Rating: 4.6 (9 reviews)

9 Reviews

4 Questions

3.248" piston ring diameter
.060" oversize
Sold as a set

Bore/Stroke:

3.248" Bore

3.313" Bore

$84.99

/set

In Stock

Quantity

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Product Summary

3.248" Piston Ring Diameter

3.248" piston ring diameter
.060" oversize
Sold as a set
Cast iron top ring and second ring

See more details

Key Specs

MFG. Part #	56042620
Brand	Offenhauser
Piston Ring Diameter	3.248"

See more specs

Need To Know

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Offenhauser 56042620 Details

The original bore size was 3.188", which makes these .060" oversize.

Charts

Instructions (PDF)

Anchor Instructions (PDF)

Guides & Documents

Piston Rings Installation Instructions (56042620)

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

Offenhauser 56042620 Specifications

KEY SPECS
MFG. Part #	56042620
Brand	Offenhauser
Piston Ring Diameter	3.248"

GENERAL
Top Ring Material	Cast Iron
Second Ring Material	Cast Iron
Oil Ring Tension	Standard Tension
Sold in Quantity	Set
Notes	Flathead Ford 6 PC PER PISTON. (3) CAST IRON RINGS (1) CORRAGATED BRASS RING (2) WIPERS FOR BRASS RING.

Ratings & Reviews

4.6

9 Reviews

Overall Assessment

Customers highly recommend the product as it fits well and works great, suggesting prior successful use especially for summer purposes. High-quality material and usability make the product stand out, with its easy sizing and accurate fits. Although some customers point out inadequate installation directions, they appreciate that thorough guidance is available online. The product gets credited for being a good value too - delivering hard-to-find parts at great prices. Customers also indicate that they would buy this product again.

Write A Review

4.6

9 reviews

Filter by Ratings

Sort Reviews

yes

5.0

4 years ago

(Drip), I can drive people insane look-i

weekend summer use

Would Recommend

Yes

5.0

5 years ago

Pauls 39 coupe

Jackson Michigan

Verified

We have used these pistons before with good results.

Would Recommend

I would buy this again

5.0

6 years ago

Ken Kelsey

Utah

Verified

Good product will work great

Every thing was as ordered and without fault, a good product

5.0

7 years ago

Alex

Hamilton New Zealand

Verified

A good product very easy to size and use

Would Recommend

I would buy this product again!

5.0

7 years ago

Chris

Rosemount MN

Verified

49 flathead, build going great!

Would Recommend

Excellent

5.0

10 years ago

jack

knoxville tn

Verified

Very good fit

Would Recommend

Offenhauser piston rings

4.0

10 years ago

30 Flatty

Caryville, tn

Verified

The rings fit well & gapped good. The instructions included with the rings didn't give enough information but the online instructions on Speedway's website was very accurate. They should be included with the rings!

Would Recommend

speedway review

4.0

10 years ago

hans

Spanish fork ut

Verified

Hard to find parts for great prices

Would Recommend

Poor installation directions

3.0

11 years ago

jhubcap52

Wisconsin USA

Verified

This ring set had directions on how to install them in the piston but not where to install each ring in there respective grooves, also the bottom oil ring fit too tight in the cyl. and had to be hand fitted.

Would Recommend

Showing 9 of 9 reviews

Questions & Answers

4 Questions • 4 Answers

Sort Questions

What are the ring thicknesses please?

by Tom

• 6 years ago

1 answer

View Answer

The Offenhauser shipping carton and Speedway instructions DO NOT identify the top compression ring and second compression ring. There are pictures of the various compression rings in the first figure of the Speedway INSTRUCTIONS for the 560-42620 ring set, but they are generic pictures. The ring set includes one similar to the ring at top center of the picture, but I do not see a coating on the ring, and the second compression ring is similar to the one on the bottom right of the picture of Compression Rings. So, my question is: Does Speedway or Offenhauser have a video or more documentation for this set of piston rings? My guess is that the ring similar to the one at the top center is the top compression ring , and the bottom right is the second, and that the orientation of the one at the bottom right (beveled) is oriented with the top up. Please confirm that this is correct, or send a link or detailed instructions which could be attached to your reply. Thanks

by Jerry

• 10 years ago

1 answer

View Answer

ring gap?

by bwas

• 11 years ago

1 answer

View Answer

Are these rings cast iron?

by Denis

• 13 years ago

1 answer

View Answer

4 of 4 questions shown

Fitment

1932 Ford 1 Ton Pickup

221 Ford Flathead V8

1933-1936 Ford 1 Ton Pickup

Ford Flathead V8 17 Stud 221 18
Ford Flathead V8 21 Stud 221 40

1937-1938 Ford 1 Ton Pickup

221 Ford Flathead V8

1939 Ford 1 Ton Pickup

Ford Flathead V8 24 Stud 239 99A

1940 Ford 1 Ton Pickup

Ford Flathead V8 24 Stud 239 09A

1941 Ford 1 Ton Pickup

Ford Flathead V8 24 Stud 221 11A
Ford Flathead V8 24 Stud 239 19A

1942 Ford 1 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 29A

1943-1946 Ford 1 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 69A

1947 Ford 1 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 79

1932-1937 Ford 1/2 Ton Pickup

221 Ford Flathead V8

1938 Ford 1/2 Ton Pickup

Ford Flathead V8 24 Stud 221 81A

1939 Ford 1/2 Ton Pickup

Ford Flathead V8 24 Stud 221 91A
Ford Flathead V8 24 Stud 239 99A

1940 Ford 1/2 Ton Pickup

Ford Flathead V8 24 Stud 221 01A
Ford Flathead V8 24 Stud 239 09A

1941 Ford 1/2 Ton Pickup

Ford Flathead V8 24 Stud 221 11A
Ford Flathead V8 24 Stud 239 19A

1942 Ford 1/2 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 29A

1943-1946 Ford 1/2 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 69A

1947 Ford 1/2 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 79

1932-1937 Ford 3/4 Ton Pickup

221 Ford Flathead V8

1938 Ford 3/4 Ton Pickup

Ford Flathead V8 24 Stud 221 81A

1939 Ford 3/4 Ton Pickup

Ford Flathead V8 24 Stud 221 91A
Ford Flathead V8 24 Stud 239 99A

1940 Ford 3/4 Ton Pickup

Ford Flathead V8 24 Stud 221 01A
Ford Flathead V8 24 Stud 239 09A

1941 Ford 3/4 Ton Pickup

Ford Flathead V8 24 Stud 221 11A
Ford Flathead V8 24 Stud 239 19A

1942 Ford 3/4 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 29A

1943-1946 Ford 3/4 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 69A

1947 Ford 3/4 Ton Pickup

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 79

1953 Ford Club

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1952 Ford Country Sedan

Ford Flathead V8 24 Stud 239 8RT

1953 Ford Country Sedan

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1952 Ford Country Squire

Ford Flathead V8 24 Stud 239 8RT

1953 Ford Country Squire

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1953 Ford Crestline

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1949 Ford Custom

Ford Flathead V8 24 Stud 255 9CM
Ford Flathead V8 24 Stud 337

1953 Ford Customline

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1939 Ford Deluxe

Ford Flathead V8 24 Stud 221 91A
Ford Flathead V8 24 Stud 239 99A

1940 Ford Deluxe

Ford Flathead V8 24 Stud 221 01A
Ford Flathead V8 24 Stud 239 09A

1946 Ford Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 69A

1947 Ford Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 79

1948 Ford Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 89

1953 Ford F-100

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1953 Ford F-250

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1953 Ford F-350

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1948 Ford F1

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 89

1949 Ford F1

Ford Flathead V8 24 Stud 255 9CM
Ford Flathead V8 24 Stud 337

1950 Ford F1

Ford Flathead V8 24 Stud 255 0CM
Ford Flathead V8 24 Stud 337

1951 Ford F1

Ford Flathead V8 24 Stud 255 1CM
Ford Flathead V8 24 Stud 337

1952 Ford F1

Ford Flathead V8 24 Stud 255 MA
Ford Flathead V8 24 Stud 337

1948 Ford F2

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 89

1949 Ford F2

Ford Flathead V8 24 Stud 255 9CM
Ford Flathead V8 24 Stud 337

1950 Ford F2

Ford Flathead V8 24 Stud 255 0CM
Ford Flathead V8 24 Stud 337

1951 Ford F2

Ford Flathead V8 24 Stud 255 1CM
Ford Flathead V8 24 Stud 337

1952 Ford F2

Ford Flathead V8 24 Stud 255 MA
Ford Flathead V8 24 Stud 337

1948 Ford F3

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 89

1949 Ford F3

Ford Flathead V8 24 Stud 255 9CM
Ford Flathead V8 24 Stud 337

1950 Ford F3

Ford Flathead V8 24 Stud 255 0CM
Ford Flathead V8 24 Stud 337

1951 Ford F3

Ford Flathead V8 24 Stud 255 1CM
Ford Flathead V8 24 Stud 337

1952 Ford F3

Ford Flathead V8 24 Stud 255 MA
Ford Flathead V8 24 Stud 337

1953 Ford Mainline

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1932 Ford Model 18

221 Ford Flathead V8

1942 Ford Model 21 A Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 29A

1933-1934 Ford Model 40

221 Ford Flathead V8

1934 Ford Model 40 A

221 Ford Flathead V8

1933 Ford Model 46

221 Ford Flathead V8

1935 Ford Model 48

221 Ford Flathead V8

1935 Ford Model 50

221 Ford Flathead V8

1936 Ford Model 67

221 Ford Flathead V8

1936 Ford Model 68

221 Ford Flathead V8

1937 Ford Model 74

221 Ford Flathead V8

1937 Ford Model 78

221 Ford Flathead V8

1938 Ford Model 81 A

Ford Flathead V8 24 Stud 221 81A

1938 Ford Model 82 A

Ford Flathead V8 24 Stud 221 81A

1938 Ford Model 85

Ford Flathead V8 24 Stud 221 81A

1932-1934 Ford Model BB

221 Ford Flathead V8

1940 Ford Pickup

221 Ford Flathead V8

1953 Ford Ranch Wagon

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1932-1937 Ford Sedan Delivery

221 Ford Flathead V8

1938 Ford Sedan Delivery

Ford Flathead V8 24 Stud 221 81A

1939 Ford Sedan Delivery

Ford Flathead V8 24 Stud 221 91A
Ford Flathead V8 24 Stud 239 99A

1940 Ford Sedan Delivery

Ford Flathead V8 24 Stud 221 01A
Ford Flathead V8 24 Stud 239 09A

1941 Ford Sedan Delivery

221 Ford Flathead V8
Ford Flathead V8 24 Stud 239 79

1942 Ford Sedan Delivery

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 29A

1946 Ford Sedan Delivery

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 69A

1947 Ford Sedan Delivery

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 79

1953 Ford Sunliner

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1942 Ford Super Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 29A

1946 Ford Super Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 69A

1947 Ford Super Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 79

1948 Ford Super Deluxe

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 89

1953 Ford Victoria

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1952 Mercury Custom

Ford Flathead V8 24 Stud 255 MA
Ford Flathead V8 24 Stud 337

1953 Mercury Custom

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1946 Mercury Mercury

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 69M

1947 Mercury Mercury

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 79

1948 Mercury Mercury

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 89

1949 Mercury Mercury

Ford Flathead V8 24 Stud 255 9CM
Ford Flathead V8 24 Stud 337

1950 Mercury Mercury

Ford Flathead V8 24 Stud 255 0CM
Ford Flathead V8 24 Stud 337

1951 Mercury Mercury

Ford Flathead V8 24 Stud 255 1CM
Ford Flathead V8 24 Stud 337

1952 Mercury Mercury

Ford Flathead V8 24 Stud 255 MA
Ford Flathead V8 24 Stud 337

1950 Mercury Monterey

Ford Flathead V8 24 Stud 255 0CM
Ford Flathead V8 24 Stud 337

1951 Mercury Monterey

Ford Flathead V8 24 Stud 255 1CM
Ford Flathead V8 24 Stud 337

1952 Mercury Monterey

Ford Flathead V8 24 Stud 255 MA
Ford Flathead V8 24 Stud 337

1953 Mercury Monterey

Ford Flathead V8 24 Stud 255 V8
Ford Flathead V8 24 Stud 337

1941 Mercury Series 19A

Ford Flathead V8 24 Stud 239 0BA

1942 Mercury Series 29A

Ford Flathead V8 24 Stud 221 21A
Ford Flathead V8 24 Stud 239 29A

1939 Mercury Series 99A

Ford Flathead V8 24 Stud 239 0BA

1940 Mercury Series O9A

Ford Flathead V8 24 Stud 239 0BA