America's Oldest Speed Shop® Lincoln, NE 855.682.4406
1939-53 Flathead Ford V8 4-Ring Pistons, 3-3/4 Stroke, .060 Over Speedway
1939-53 Flathead Ford V8 4-Ring Pistons, 3-3/4 Stroke, .060 Over
Sku # 91015900
Mfr. Part # 91015900
Condition
New
Brand
Speedway
Sold
Set
Details
Info

Original flathead pistons used four rings, were somewhat round, had questionable wrist pins and locks and were made of cast iron. These pressure-cast aluminum pistons share the four-ring design, but are cam ground and use modern steel wrist pins and real snap rings. They’re a great upgrade when rebuilding your 1939-1953 flathead Ford or Mercury V8 engine.

Sizing based on original 3.188" bore. Fits .060" overbore size and 3.75" stroke crank. Sold as a set of 8.

  • Original 4-ring design
  • Pressure cast aluminum construction provides great strength and durability
  • Precision cam ground
  • Modern steel wrist pins
  • Snap ring style retainer clips
Specs
Sold in Quantity
Set
Piston Style
Flat Top
Piston Material
Cast Aluminum
Notes
Compression height is 1.729"
Piston Diameter
3.248
Stroke
3.75
Piston Weight
470
Related Items / Suggested Parts
Offenhauser 39-53 Flathead Ford 4-Ring Pistons, 3.75 Stroke/3.248 Bore
Offenhauser 39-53 Flathead Ford 4-Ring Pistons, 3.75 Stroke/3.248 Bore
Arias Forged Flathead Ford Pistons, 3.75 Stroke
Arias Forged Flathead Ford Pistons, 3.75 Stroke
Flathead Ford 4 Ring Set, 3.188 Bore, +.060 Oversize
Flathead Ford 4 Ring Set, 3.188 Bore, +.060 Oversize
Ford Flathead V8 Builders Handbook
Ford Flathead V8 Builders Handbook
Shipping

Shipping Policy:

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  • If shipping rates do not combine properly, contact us or send a buyer requested total.
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  • Failure to do so will result in separate shipping fees for each individual item.
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Tech Support
Not sure this part will fit? Call us Toll Free at 855.682.4406 M-F 8am-5pm CST for support from our knowledgeable techs!
About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 65 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
Return Policy
We want you to be satisfied with your purchase. If within 60 days after you receive your shipment and you are not satisfied, you may return the item for a refund or an exchange. Refunds will be processed (1) day after the item is received by Speedway. All exchanged or returned merchandise must be in original factory condition with no modifications or alterations.

Returned merchandise must include all packaging materials, warranty cards, manuals, and accessories. If the items being returned need to be repackaged, there will be a repacking charge. Repack the item in a sturdy box, include a copy of your invoice and complete the form on the back of the invoice. You must ship orders back PREPAID. WE DO NOT ACCEPT COD SHIPMENTS. All exchanges need to have reshipping charges included.

All fiberglass items returned will be subject to a 15% restocking charge. No returns on electrical parts, DVDs, and books unless they are defective. Absolutely no returns on special order or closeout merchandise.
Payment
  • Accepted Payment Methods - PayPal and major credit cards are accepted. Sales tax at 7.25% will apply for customers in Nebraska, 7.0% for customers in Indiana, and 6.0% for customers in Kentucky.
  • Terms - Payment is required before shipment and must be received within seven (7) days.
Guarantee
Speedway accepts full responsibility for the accuracy of our listings and product representation. If an egregious shipping or description error occurs, the customer will be refunded in full or sent the correct item at no additional cost.
Disclaimer
Due to our large inventory and the diversity of our product line, the stock photo used may not be an exact representation of the item you are bidding on. Please read all product information carefully before purchase to avoid any order issues.