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Sealed Power E240K40 Cast Iron Engine Piston Ring Set 8-Cylinder +0.040 Oversize

(Chevrolet Corvette 1955-56, Bel Air 1955-57, Truck 1955-57, Sedan Delivery 1955-57, Del Ray 1957, Nomad 1955-57, One-Fifty Series 1955-57 + 115 more models)

Manufacturer

Picture for manufacturer Sealed Power

Part Number

E240K40
8 reviews
Sale Price

$119.27

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sealed Power E-240K 40 is a cast iron engine piston ring set engineered for 8-cylinder applications requiring a +0.040 in. oversize bore. Manufactured under ISO and QS certified processes, this ring set delivers the precise tolerances and material quality needed for reliable engine rebuilds on both classic and modern powerplants.

Sealed Power's cast piston ring line features a variety of top ring facing materials designed to reduce friction and resist scuffing, helping the rings seat properly and maintain a strong combustion seal over the long term. Each set meets or exceeds OEM specifications, making them a dependable choice for stock replacements and engine rebuilds alike.

Key Features:

  • Cast iron construction for durability and long service life
  • Ring thickness: 5/64 in. (top), 5/64 in. (second), 3/16 in. (oil)
  • +0.040 in. oversize bore fitment
  • 8-cylinder application — sold as a complete set
  • Variety of top ring facing materials to reduce friction and resist scuffing
  • Exacting tolerances for proper fit and combustion sealing
  • Meets or exceeds OEM specifications
  • ISO and QS certified manufacturing

Whether you're rebuilding a worn engine or upgrading to a bored-over block, the Sealed Power E240K40 piston ring set provides the sealing performance and OE-level quality needed to get your engine back to peak operating condition.

Products specifications

Fits

Chevrolet Corvette 1955-56, Bel Air 1955-57, Truck 1955-57, Sedan Delivery 1955-57, Del Ray 1957, Nomad 1955-57, One-Fifty Series 1955-57, Two-Ten Series 1955-57; Ford F-250 1958-64, Thunderbird 1955-58, F-350 1958-64 + 111 more models

Agricultural Equipment

N

Application Specific

Y

Car Light Truck

Y

Engine Specific

Y

Freight Class

55

Heavy Duty Truck

N

High Performance

N

Industrial Off Highway Equipment

N

Marine

N

Medium Duty Truck

Y

Motorcycle ATV

N

Non Vehicle Specific

N

Oversize Inch

.035

Personal WaterCraft

N

Small Engine

N

SnowMobile

N

Transmission Specific

N

Feature 2

Decreases friction

What is in the box

In the box: engine set of piston rings

Feature 1

The face of the top rings are coated with the latest generation Plasma-Moly

Feature 3

Very resistant to scuffing

Cylinder Quantity

8

Radial Wall Thickness - Top (in)

0.176

2nd Ring Width (in)

5/64

File Fit

No

Oil Ring Width (in)

3/16

File Fit (Y/N)

N

Top Ring Width (in)

5/64

2nd Ring Material

Grey Iron w/Phosphate Coating

2nd Ring Face Design

Reverse Torsional

Outside Diameter (in)

3.7900

Oil Ring Design

3 Piece Flex Vent

Oversized Amount

0.040

Outside Diameter

3.7900

Oversize (in)

0.040

Top Ring Radial Wall Thickness

0.176

Bore Size (in)

3.7500

Ring Set Groove Widths (in)

5/64 x 5/64 x 3/16

Top Ring Material

Steel w/Moly

Top Ring Face Design

Barrel Face

Bore Diameter

3.7500

Top Ring Material

Grey Iron w/Plasma Moly

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Did not receive a confirmation email when I placed the order so I was unsure if if the order had gone through properly. Part shipped the day after I ordered it. I received three confirmation emails at the that time for some reason. Overall I would say the experience ordering from Autoplicity was excellent and inspired confidence.

Product arrived fast and as described. The best price I found online. Packing was excellent, highly recommend Autoplicity.

Great Company. I needed a part quickly and for the right price. They had the best price on the internet, and made sure it got to me in two days before I went away on my road trip. I spoke to a representative that was very helpful. I highly recommend Autoplicity! Thanks!!!

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Great experience, fast and easy.

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