Carrillo BF9831-020 Forged Pistons Ford 4.6L 4V 3.572" Bore 9.2:1 Power Adder

The Carrillo BF9831-020 Bullet Series forged piston set is specifically engineered for Ford 4.6L 4-valve Modular engines running forced induction applications. These premium pistons are designed to handle the extreme demands of nitrous oxide, superchargers, and turbochargers while maintaining reliability in high-performance builds.

Key Specifications:

• Bore: 3.572" (.020" oversize)
• Stroke: 3.543"
• Rod Length: 5.933"
• Compression Height: 1.220"
• Compression Ratio: 9.2:1
• Dish Volume: -9cc
• Advertised Weight: 369 grams per piston

Premium Construction Features:

• Manufactured in the USA from 2618-T61 forged aluminum alloy for superior strength and thermal stability
• Special skirt design reduces piston noise and wear
• Accumulator grooves and forced pin oilers enhance lubrication
• 1.5mm steel gas nitride top ring for maximum durability
• 1.5mm Napier-style second ring for improved sealing
• 3.0mm oil ring package for excellent oil control
• .866" x 2.500" wrist pins with .200" wall thickness included

This complete set includes 8 pistons, piston rings, wrist pins, and locks. The 9.2:1 compression ratio is optimized for power adder applications, providing the ideal balance between performance and detonation resistance. CP-Carrillo's Bullet Series pistons feature proven skirt profiles that deliver maximum power while being gentle on cylinder walls, making them a favorite among professional engine builders and serious enthusiasts.