Speedmaster Ford 351W Windsor 408 434 ci Flat Top Forged Pistons PCE305.1090.05

Speedmaster PCE305.1090.05 forged pistons are engineered for high-performance Ford 351W Windsor engines. These flat top forged pistons deliver precision fitment and durability for engine builders and enthusiasts demanding reliable, quality internal components. Designed to support 408-434 cubic inch displacement builds, they feature a 4.060" bore diameter with 1.250" pin diameter and 0.927" compression height—critical specifications for proper ring sealing, valve clearance, and power delivery.

Flat top pistons offer increased compression and chamber volume efficiency, making them ideal for naturally aspirated performance and street applications. The forged construction provides superior strength for high-RPM operation and boost compatibility. These pistons work with standard Ford 351W Windsor engine blocks and are a key component in medium to large displacement stroker builds. Whether you're assembling a weekend cruiser, street rod, or track engine, Speedmaster forged pistons ensure consistent quality and long-term reliability.

Key Features & Benefits

• Forged Construction: Heavy-duty forged steel pistons provide superior strength and durability for high-RPM and high-power applications.
• Flat Top Design: Optimized combustion chamber geometry increases compression efficiency and power output.
• Precision Specifications: 4.060" bore, 1.250" pin diameter, 0.927" compression height engineered for 408-434 ci Ford engines.
• Ford 351W Windsor Compatible: Direct fit for Windsor engine blocks in displacement range from 408 to 434 cubic inches.
• High-Performance Ready: Suitable for naturally aspirated, supercharged, and turbocharged engine builds.

Specifications

Ideal Applications

• Street rod and classic car engine builds
• Naturally aspirated performance engine assembly
• Supercharged and turbocharged Windsor builds
• Engine rebuilds and restorations