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JE Pistons 213109 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

213109
8 reviews
Sale Price

$1,076.99

1 left at this price

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Usually delivered within 2 days

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Product Details

The JE Pistons 213109 forged piston set delivers race-proven performance for high-horsepower engine builds. Manufactured from lightweight 2618 aluminum alloy, these pistons feature an 18-degree dome design that increases compression for improved power output. With a 4.125-inch bore diameter, 1.062-inch compression distance, and 0.927-inch pin diameter, this set is precision-engineered for demanding applications.

Key Features:

  • Application-specific forgings provide optimized, uniform crown thickness for superior strength and heat dissipation
  • Contact reduction groove minimizes frictional drag for increased efficiency
  • Accumulator groove enhances 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 deliver consistent lubrication
  • Wire locks included for secure piston pin retention
  • Oil rail support included for proper ring function

Each set includes 8 matched pistons to ensure balanced performance across all cylinders. For over 60 years, JE Pistons has been the industry leader in forged racing pistons for high-performance and racing applications. Recommended ring set: J10008-4125-5 (sold separately).

Products specifications

Fits

1970-1980 Chevrolet 400 Small Block

Block Height

9

Bore

4.125

Bore (in)

4.125 in.

Bore (mm)

104.775mm

CID

414

Comp Height

1.06

Comp Ratio @ 58CC

15.4:1

Comp Ratio @ 64cc

14.7:1

Comp Ratio @ 76CC

14.1:1

Compression Distance (in)

1.062 in.

Dome Volume

2.5

Gram Weight

448

Notes

Specify left or right hand piston. Oil rail support included. Solid dome design.

Oversize

STD

Pin Diameter (in)

0.927 in.

Piston Head Volume (cc)

-2.50cc

Piston Material

Forged aluminum

Piston Ring Thickness

1/16 in. x 1/16 in. x 3/16 in.

Piston Style

Dome, with two valve reliefs

Quantity

Sold individually.

Rod

6

Stroke

3.875

Wrist Pin Style

Press-fit or floating

Oil Ring Thickness

0.218

Engine

SMALL BLOCK CHEVROLET

Out of Stock Message

Call for Availability

Ringset Included

No

Piston Pin Outside Diameter

0.927

Add-On

927-073-AS

Forging Type

Round

Cylinder Head

CHEVROLET 18 DEG

Compression Height

1.062

Second Compression Ring Thickness

0.064

Piston Material

2618

Piston Pin Material

5115

Piston Pin Length

2.750

Add-On

J10008-4125-5

Industry

Automotive

Piston Volume

3.3

Bore Diameter

4.125

Top Compression Ring Thickness

0.064

Product Market

Domestic

Make

Chevrolet

Category Hierarchy

Pistons>Piston Kits

Piston Head Type

Dome

Piston Pin Wall Thickness

0.150

Add-On

927-2750-15-51S

Piston Avg Wt

450

Prop 65

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

Wrist Pin Outer Diameter

0.927

Piston Quantity

8

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