Wiseco PTS534A3 Pro Tru Street Forged Piston & Ring Kit - SBC 4.030 in. Bore Dish

The Wiseco PTS534A3 Pro Tru Street Piston and Ring Kit delivers forged performance for Chevy Small Block 350 engines at a price point suited for street and budget builds. Forged from 4032 aluminum alloy at Wiseco's facility in Mentor, Ohio, these pistons offer the strength and precision of a race-grade forging without the premium cost of full competition components.

This kit features a dish crown design (-20.0cc) with a 4.030 in. bore, 1.125 in. compression height, and a 0.927 in. pin diameter. The dish profile is engineered for 23-degree Chevy Small Block cylinder head applications and supports compression ratios of approximately 9.0:1 with 67cc chambers or 9.9:1 with 64cc chambers.

Key Features:

• 4032 Forged Aluminum Construction — precision forged for superior strength and heat resistance
• ArmorGlide Skirt Coating — proprietary coating that reduces friction, resists seizure, lowers noise, and enables tighter dimensional tolerances than standard spray-on coatings
• Oversized, Symmetrical, Radiused Valve Pockets — promotes maximum flow around valves during overlap and accommodates oversized valves and high-lift camshafts
• Chromium Alloy Steel Piston Pins — included for durability under high-load conditions
• Spirolox Retaining Clips Included — complete, ready-to-install kit
• Performance Piston Ring Set Included — all-inclusive rebuild kit with rings, pins, and clips
• AS-Forged Crown with Oil Drain Backs — optimized crown geometry for efficient oil control

The Pro Tru Street series bridges the gap between OEM replacement and full-race components, making it an ideal choice for street/strip builds, engine rebuilds, and mild performance upgrades on Chevy 350 and 383 stroker applications.