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JE Pistons 281793 Forged Dome Piston Set Bore Alloy - 4.125 2618 8-Cylinder

(1970-1980 Chevrolet 400 Small Block)

Part of: JE Pistons Forged Dome Piston Set Bore

Other options in this family: JE Pistons 353906 JE Pistons 186235 JE Pistons 359152 JE Pistons 361278 JE Pistons 258239

Manufacturer

Picture for manufacturer JE Pistons

Part Number

281793
7 reviews
Sale Price

$1,176.99

1 left at this price

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Usually delivered within 2 days

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Product Details

JE Pistons 281793 is a premium forged piston set engineered from 2618 aluminum alloy for high-performance engine builds. This 8-piston set features a dome crown design with a 4.125-inch bore diameter, 1.100-inch compression distance, and 0.927-inch wrist pin diameter, making it ideal for racing and high-stress applications.

Key Features:

  • Application-specific forgings ensure optimized, uniform crown thickness for maximum strength and heat resistance
  • Contact reduction groove minimizes frictional drag for improved efficiency
  • Accumulator groove increases top ring stability and sealing performance
  • CNC-machined side relief with lower support band provides additional skirt strength and stability
  • Honed pin bores with double pressure-fed pin oilers for superior lubrication
  • Wire locks included for secure pin retention
  • JE ProSeal piston rings included with each set

JE Pistons has been the industry leader in forged racing pistons for over 60 years, providing precision-engineered components for Chevy, Ford, Mopar, and Buick performance engines. All JE pistons are sold as matched sets to ensure consistent compression and balanced performance across all cylinders.

Products specifications

Fits

1970-1980 Chevrolet 400 Small Block

Block Height

9

Bore

4.125

CID

406

Comp Height

1.095

Comp Ratio @ 58CC

16.4:1

Comp Ratio @ 64cc

15.1:1

Comp Ratio @ 76CC

14:1

Dome Volume

-4.5

Gram Weight

444

Oversize

STD

Rod

6

Make

Chevrolet

Piston Avg Wt

444

Bore Diameter

4.125

Piston Volume

-4.5

Piston Material

2618

Piston Pin Wall Thickness

0.150

Piston Pin Outside Diameter

0.927

Out of Stock Message

Call for Availability

Piston Pin Length

2.750

Ringset Included

No

Top Compression Ring Thickness

0.0475

Compression Height

1.100

Cylinder Head

CHEVROLET 13 DEG

Oil Ring Thickness

0.149

Second Compression Ring Thickness

0.06

Product Market

Domestic

Forging Type

Round

Engine

SMALL BLOCK CHEVROLET

Add-On

927-042-CS

Piston Head Type

Dome

Category Hierarchy

Pistons>Piston Kits

Piston Pin Material

5115

Add-On

927-2750-15-51S

Add-On

J75008-4125-5

Industry

Automotive

Wrist Pin Outer Diameter

0.927

Piston Quantity

8

Prop 65

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

Autoplicity simply had the best prices available and everything was in stock to be shipped.

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.

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