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Carrillo BM4003-055 Big Block Chrysler Forged Piston Set

Manufacturer

Picture for manufacturer Carrillo

Part Number

BM4003-055
9 reviews
Sale Price

$908.46

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Carrillo BM4003-055 is a precision-engineered forged piston set designed specifically for Big Block Chrysler engines with 15-degree wedge cylinder heads. These high-performance pistons are built to withstand extreme combustion pressures and temperatures in racing and high-output street applications.

Key Specifications:

  • Bore Size: 4.375 inches
  • Stroke: 4.150 inches
  • Rod Length: 6.768 inches
  • Compression Ratio: 12.7:1 (with 78cc combustion chamber)
  • Dome Volume: +7.3cc positive displacement dome
  • Compatible with all 15-degree wedge heads

Carrillo pistons are manufactured from premium aerospace-grade aluminum alloy and feature advanced forging techniques that create a dense, uniform grain structure for maximum strength and reliability. The dome design optimizes flame propagation and combustion efficiency while achieving the high compression ratio needed for race fuel applications. Each piston is precision-machined to exact tolerances ensuring proper ring seal and minimal friction.

These pistons are ideal for serious racing applications, forced induction builds, or high-compression naturally aspirated engines where durability and performance are paramount.

The first product I received was incorrect and they were very timely in getting me the information I needed for the return. No hassle what so ever.

Great price. Fast shipping. AC Delco part, not a cheap off brand.

Couldn't use paypal but other than that it was fine. Battery came with a broken top, packaging was not up to the std. of other Optima batteries I have ordered on line.

Easy to find the part I needed and quick easy checkout.

Easy to order. Hope you sent the correct parts!

I hope this fits.

great service

Great prices, good deals n shipping prices are rreasonable.

Excellent seller. Ordered a cargo mat. They shipped promptly, merchandise was as described and they sold it for a lot less than other retailers.

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