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JE Pistons 182033 Forged Dome Piston Set Bore Alloy - 4.125 2618 8-Pack

(1970-1980 Chevrolet 400 Small Block)

Manufacturer

Part Number

182033
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 182033 is a high-performance forged piston set designed for serious racing and high-output engine builds. Manufactured from premium 2618 aluminum alloy, these pistons feature a 23-degree solid dome design that increases compression ratio for maximum power output. Each set includes 8 matched pistons with a 4.125-inch bore diameter, 1.062-inch compression distance, and 0.927-inch pin bore.

Key Features:

  • Application-specific forgings provide optimized, uniform crown thickness for strength and heat management
  • Contact reduction groove minimizes frictional drag for increased horsepower
  • Accumulator groove enhances top ring stability and sealing under extreme cylinder pressures
  • CNC-machined side relief with lower support band adds critical skirt strength
  • Honed pin bores ensure precise piston pin fit and reduced friction
  • Double pressure-fed pin oilers provide superior wrist pin lubrication
  • Wire locks included for secure piston pin retention
  • Oil rail support included for proper ring installation and sealing

Backed by over 60 years of racing piston expertise, JE Pistons are trusted by professional engine builders and racers worldwide. These pistons are sold as precision-matched sets to ensure balanced performance. 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

14.2:1

Comp Ratio @ 64cc

13.1:1

Comp Ratio @ 76CC

11.3:1

Compression Distance (in)

1.062 in.

Dome Volume

3

Gram Weight

444

Notes

Oil rail support included. Solid dome design.

Oversize

STD

Pin Diameter (in)

0.927 in.

Piston Head Volume (cc)

-3.00cc

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

Cylinder Head

CHEVROLET 23 DEG 20/30

Piston Material

2618

Piston Head Type

Dome

Piston Pin Outside Diameter

0.927

Category Hierarchy

Pistons>Piston Kits

Industry

Automotive

Add-On

J10008-4125-5

Piston Pin Material

5115

Piston Avg Wt

444

Top Compression Ring Thickness

0.064

Piston Pin Wall Thickness

0.150

Make

Chevrolet

Add-On

927-2750-15-51S

Out of Stock Message

Call for Availability

Product Market

Domestic

Engine

SMALL BLOCK CHEVROLET

Piston Volume

5.6

Add-On

927-042-CS

Ringset Included

No

Bore Diameter

4.125

Forging Type

Round

Second Compression Ring Thickness

0.064

Piston Pin Length

2.750

Compression Height

1.062

Oil Ring Thickness

0.218

Prop 65

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

Piston Quantity

8

Wrist Pin Outer Diameter

0.927

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