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Wiseco K0239A100 BBC Forged Dome Piston Kit Bore - 396/427/454/502 34cc 4.350

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

K0239A100
7 reviews
Sale Price

$1,150.99

Estimated ship date Tuesday, November 24

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Product Details

The Wiseco K0239A100 is a forged dome piston kit designed for Chevrolet Big Block (BBC) engines in the 396, 427, 454, and 502 cubic inch family. Featuring a 4.350" bore, 34cc dome volume, and 1.760" compression height, this kit is engineered to deliver high-performance reliability in stock-stroke BBC builds.

Forged from 2618 high-strength aluminum alloy, these pistons offer exceptional durability under high heat and pressure. Wiseco's proprietary ArmorGlide® skirt coating reduces friction, resists seizure, and contributes to quieter operation. Vertical gas ports enhance ring seal performance for improved combustion efficiency.

Key Specifications:

  • Kit Part Number: K0239A100
  • Application: Chevy Big Block (BBC) 396 / 427 / 454 / 502
  • Bore: 4.350"
  • Dome Volume: 34cc
  • Compression Height (CH): 1.760"
  • Stroke: 3.766"
  • Rod Length: 6.135"
  • 0 Deck At: 9.780" | Std. Deck Height: 9.800"
  • Compression Ratio (96cc chamber): 12.6:1
  • Compression Ratio (102cc chamber): 12.0:1
  • Compression Ratio (118cc chamber): 10.0:1
  • Compression Ratio (121cc chamber): 9.9:1
  • Alloy: 2618 High Strength Aluminum
  • Top Ring Land: .310" | Int. .320" | Exh. +.120"
  • Ring Grooves: 1/16", 1/16", 3/16" (rings sold separately)
  • Pin Included: S460 (.990" x 2.930"), .150 wall with Double Spirolox®
  • Recommended Ringset: J100F8-4350-5 (sold separately)
  • Skirt Type: Slab Sided

Key Features:

  • ArmorGlide® skirt coating for reduced friction and seizure resistance
  • Vertical gas ports for improved ring seal and combustion efficiency
  • 2618 high-strength aluminum alloy construction
  • Anti-detonation and pressure seal grooves
  • Fully machined dome crown with precision ring grooves
  • Double Spirolox® wrist pin retention included
  • C/R calculated at 0 deck with .040" head gasket

This piston kit is an excellent choice for performance street and race BBC builds targeting a stock-style 3.766" stroke. Rings are sold separately — order ringset J100F8-4350-5 to complete the assembly.

Called with fitment questions. Very polite and knowledgeable. Thanks.

I made a mistake when ordering when I contacted customer service the next day they fixed it right away nice to deal with

Good price delivered on time

Your shipping notification never worked.

When I ordered this shower faucet to replace the original, I didn't expect arrival for maybe a week. This arrived in 2 days. That's amazing. I'm very suprised and satisfied with the quality. I installed it the same day in about 20 min. I'm actually going to order another one, just with a different finish. Or I might order 2 so I can have an extra. Never know when 1 of the 3 could end up with the hose fitting broken off. Thanks Guys n Gals. Keep up the good work. Rob

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