Carrillo BLS1010-005 LS2 Flat Top Pistons Set -2.7cc 4.005 Bore

These pistons are machined to deliver optimal performance with a -2.7cc dish volume and feature a 15-degree valve relief pattern to accommodate modern LS engine valve angles.

Engine Specifications:

• Bore Size: 4.005 inches (standard size)
• Stroke: 4.000 inches
• Connecting Rod Length: 6.125 inches
• Compression Height: 1.110 inches (standard LS2 specification)
• Compression Ratio: 11.5:1 when paired with 65cc combustion chamber heads

Key Features:

• Flat top design with -2.7cc dish for precise compression tuning
• 15-degree valve reliefs optimized for L92 and similar LS3/LS9 cylinder heads
• Standard bore sizing for stock or freshly machined blocks
• Engineered for high-performance street and racing applications
• Carrillo quality construction with tight tolerances

This piston set is ideal for builders looking to achieve an 11.5:1 compression ratio in their LS2-based engine when using 65cc chamber heads. The precise dish volume and valve relief design ensure proper piston-to-valve clearance while maximizing compression efficiency for naturally aspirated performance builds.