Carrillo BLS1011-010 Bullet Series Forged Piston Set 4.010 Bore Flat Top LS Engine

The CP-Carrillo BLS1011-010 is a Bullet Series forged piston set designed for high-performance LS-based engine builds.

Proudly manufactured in the USA from 2618 aluminum alloy forgings, these pistons are engineered for street performance and power-adder applications demanding superior strength and thermal stability over cast alternatives.

Key Specifications:

• Bore: 4.010"
• Stroke: 3.622"
• Rod Length: 6.125"
• Compression Height: 1.110"
• Dome Style: Flat Top, -2.7cc
• Compression Ratio: 10.20:1
• Pin Diameter x Length: .927" x 2.250"
• Ring Grooves: 1.5mm Top / 1.5mm Second / 3.0mm Oil
• Pin Deck Height: 68.0mm
• Piston Weight: 430 grams

Key Features:

• Forged from 2618 aluminum alloy for exceptional strength under high heat and pressure
• Flat-top design optimized for LS architecture cylinder heads
• Precision-machined ring lands for reduced blowby and long ring life
• Includes wrist pins as part of the set
• Made in the USA by CP-Carrillo — a trusted name in professional motorsports piston manufacturing

The CP-Carrillo Bullet Series delivers race-proven piston technology for engine builders seeking a reliable, high-quality forged piston at a competitive price point. Compatible with LS-based engines using a 3.622" stroke and 6.125" connecting rod.