My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

JE Pistons 257669 Forged Piston Set Bore Alloy - 4.440 2618 8-Cylinder

Part of: JE Pistons Forged Piston Set Bore Alloy

Other options in this family: JE Pistons 338094 JE Pistons 291062 JE Pistons 279946 JE Pistons 314303 JE Pistons 357429

Manufacturer

Picture for manufacturer JE Pistons

Part Number

257669
7 reviews
Sale Price

$1,016.99

Estimated ship date Thursday, November 12

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

JE Pistons 257669 is a premium forged piston set engineered from 2618 aluminum alloy for high-performance engine builds. This 8-piston set features a 4.440-inch bore, 1.350-inch compression distance, and 0.990-inch pin diameter, designed for extreme durability in racing and high-boost applications.

Key Features:

  • Application-specific forgings provide optimized, uniform crown thickness for maximum strength
  • Contact reduction groove minimizes frictional drag and improves efficiency
  • Accumulator groove increases top ring stability and sealing performance
  • CNC-machined side relief with lower support band adds skirt strength and reduces weight
  • Honed pin bores ensure precise pin fit and reduced friction
  • Double pressure-fed pin oilers provide superior lubrication
  • Wire locks included for secure pin retention
  • JE ProSeal piston rings included with each set

Manufactured from 2618 aluminum alloy, these pistons deliver exceptional tensile strength and fatigue resistance for demanding racing conditions. Each set is precision-matched to ensure balanced performance across all cylinders. Backed by over 60 years of JE Pistons' industry-leading engineering expertise.

Products specifications

Block Height

10.3

Bore

4.437

CID

532

Comp Height

1.35

Comp Ratio @ 72cc

10:1

Dome Volume

-39

Gram Weight

NEW!

Oversize

0.077

Rod

6.8

Stroke

4.3

Oil Ring Thickness

0.218

Piston Material

2618

Piston Pin Length

2.930

Bore Diameter

4.440

Forging Type

Round

Piston Head Type

Dish

Piston Avg Wt

590

Engine

BIG BLOCK FORD

Add-On

990-2930-15-51S

Category Hierarchy

Pistons>Piston Kits

Piston Pin Outside Diameter

0.990

Compression Height

1.350

Piston Pin Material

5115

Add-On

J100F8-4440-5

Second Compression Ring Thickness

0.064

Piston Volume

-39

Industry

Automotive

Out of Stock Message

Call for Availability

Product Market

Domestic

Ringset Included

No

Piston Pin Wall Thickness

0.150

Cylinder Head

M-6049-SCJ

Make

Ford

Top Compression Ring Thickness

0.064

Add-On

990-042-CS

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Piston Quantity

8

Fast shipping and best price on the web! I will be back and will recommend the site to friends.

They have the best prices and fast shipping too.

Great price and fast shipping!

Best price I could find! Great customer service kept me informed through the whole order process to insure acuracy since it was being sent directly from the manufacture. Recieved my order in good time, right parts and no damage. Overall very satisfied and will be doing business again in the future.

Very competitive low prices and great product selection. Will definitely look to this vendor when purchasing automotive parts in the future.

Great prices and FAST shipping!! Definitely will buy products here again!

Although there was a mix up with the shipping on my order customer service was helpful and expedited the solution and made it worth my trouble. I will be keeping Autoplicity in mind for any other parts I might need for my Jeep.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy