Wiseco PTS511A3 Pro Tru Street Forged Piston Set Ford Small Block Windsor 4.030 in. Bore Flat Top

The Wiseco PTS511A3 is a Pro Tru Street forged piston set designed for Ford Small Block Windsor engines, including popular 289/302 and 347 stroker applications.

Key Specifications:

• Bore: 4.030 in. (+0.030 over standard)
• Compression Height: 1.090 in.
• Pin Diameter: 0.927 in.
• Dome Volume: -7cc (flat top with valve reliefs)
• Alloy: 4032 forged aluminum
• Ring Grooves: 1/16 in., 1/16 in., 3/16 in.

Key Features:

• 4032 Aluminum Alloy – Allows tighter piston-to-wall clearance (approximately 0.003 in.) for quieter cold starts and reduced noise during engine warm-up compared to standard 2618 alloy pistons
• ArmorGlide Skirt Coating – Proprietary friction-reducing bonding technology that minimizes wear at bottom-dead-center reversal, extending piston and cylinder wall life
• Near-Net Forging Process – Dedicated forgings specific to the final piston shape reduce unnecessary machining, yielding a stronger and lighter piston
• CNC Machined – Precision-finished to tight tolerances on state-of-the-art CNC equipment for consistent fit and performance
• Oversized Valve Pockets – Symmetrical, radiused valve pockets provide clearance for performance valve train upgrades
• Precision Pin Bores with Pin Oilers – Ensures proper lubrication and long wrist pin life
• All-Inclusive Kit – Includes chromium alloy steel wrist pins, plasma moly pre-gapped ring set (1/16, 1/16, 3/16), and Spirolox pin retainers

The Pro Tru Street series bridges the gap between race-proven forged construction and everyday street durability. These pistons are an excellent choice for mild to moderate performance Windsor builds, stroker combinations, and engines running modest boost or nitrous, where forged reliability is desired without a race-only price tag.