Speedmaster PCE305.1085.03 Ford SB 289/302 Windsor 5.4" Flat Top Forged Pistons

The Speedmaster PCE305.1085.03 is a set of forged flat-top pistons engineered for Ford small-block 289 and 302 Windsor engines. These pistons feature a 5.4" stroke and 4.030" bore diameter, making them direct replacements for stock or performance builds. The flat-top design and forged construction deliver strength and durability for both street and competitive applications.

Forged pistons provide superior resistance to detonation and thermal stress compared to cast alternatives, making them ideal for high-compression builds, forced-induction upgrades, and engines running premium fuel or boost. The specified dimensions (1.090" wrist pin, 0.927" compression height) ensure precise fitment in 289 and 302 Windsor blocks. These pistons are a critical component for rebuilds, performance upgrades, and engine restorations where reliability and strength matter.

Key Features & Benefits

• Forged Construction: Heavy-duty forged material resists detonation and thermal fatigue better than cast pistons.
• Flat-Top Design: Classic flat-top profile optimized for Ford SB 289/302 Windsor engine geometry.
• 5.4" Stroke Sizing: Engineered for 5.4" stroke engines with 4.030" bore specification.
• Precise Fitment: 1.090" wrist pin and 0.927" compression height ensure correct installation in Windsor blocks.
• Street & Performance Ready: Suitable for stock rebuilds, street engines, and high-compression or boost applications.

Specifications

Ideal Applications

• Ford 289 Windsor engine rebuilds and restorations
• 302 Windsor performance and high-compression builds
• Street and strip engines requiring forged durability
• Engine swaps and upgrades in classic Ford vehicles