Carrillo BLS1200-STD Bullet LS7 Forged Piston and Ring Kit 4.125 Bore

The CP-Carrillo Bullet Series BLS1200-STD is a complete forged piston and ring kit engineered specifically for LS7 engines with 12-degree valve angle cylinder heads. This complete kit delivers premium performance at an exceptional value, incorporating decades of CP-Carrillo racing expertise into an affordable package.

Key Features:

• Forged from 2618 aluminum alloy for superior strength and thermal stability
• Domed piston design with two valve reliefs optimized for 12° LS7 heads
• +5cc dome volume delivers 12.9:1 compression ratio with 67.5cc heads
• 1.120 inch compression height with 0.175 inch dome height
• Special skirt design reduces piston noise and friction
• Complete ring set included: 1.5mm steel gas nitride top ring, 1.5mm Napier second ring, and 3.0mm oil ring
• Wrist pins included: 0.927 inch diameter x 2.250 inch length with 0.180 wall thickness
• Wrist pin retainers included for complete installation
• Suitable for power adders including nitrous oxide, superchargers, and turbochargers
• Proudly manufactured in the USA

Specifications:

• Bore: 4.125 inches (104.775mm)
• Stroke: 4.000 inches (stock)
• Rod Length: 6.125 inches
• Compression Height: 1.120 inches
• Pin Diameter: 0.927 inches
• Pin Length: 2.250 inches
• Piston Weight: 488 grams
• Ring Thickness: 1.5mm / 1.5mm / 3.0mm

This kit provides everything needed for a professional-quality piston installation, combining race-proven design with tight manufacturing tolerances and rigorous quality control. The Bullet Series represents CP-Carrillo's commitment to making high-performance engine components accessible without compromising quality or durability.