SKU: MAH197725130
MPN: 197725130
The SBC FT PowerPak Piston Set 4.030 Bore -5.0cc from MAHLE PISTONS is engineered for Small Block Chevy (SBC) engine builders and serious performance enthusiasts who demand precision-machined internals for high-output applications. This complete piston kit addresses the core requirement of any reliable stroker or boosted build: controlled combustion chamber volume and ring seal integrity under extreme cylinder pressures. Whether you're assembling a competition engine or restoring a classic with modern performance upgrades, proper piston selection directly impacts horsepower delivery, fuel efficiency, and longevity.
Featuring a 4.030-inch bore diameter with -5.0cc dish geometry, this PowerPak set is designed to optimize compression ratios and combustion efficiency in both naturally aspirated and forced-induction platforms. The -5.0cc negative dome reduces chamber volume, allowing builders to achieve higher effective compression without requiring custom block work or head modifications. The ring groove configuration of 1.5mm / 1.5mm / 3.0mm (top / second / oil) ensures consistent ring tension, minimal blowby, and reliable oil control across the RPM range. MAHLE's PowerPak line utilizes premium aluminum alloy construction with precision-forged skirts, delivering the thermal stability and dimensional consistency required in today's high-boost and nitrous oxide applications.
This piston kit is ideal for engine builders, performance shops, and enthusiasts rebuilding 350, 383, 400, and other SBC-based platforms where aftermarket bore sizes and compression tuning are critical. Installation requires proper ring end-gap clearancing, piston-to-wall fit verification, and rod-to-piston pin press procedures—standard for professional engine assembly. The 12.7-pound kit weight represents a complete set suitable for eight-cylinder configurations. Compatibility extends to all SBC cylinder blocks accepting 4.030-inch bore pistons; verify your specific block's deck height, rod length, and combustion chamber design before ordering to ensure optimal piston-to-valve and piston-to-deck clearances.
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