BBC FT Power-Pak Piston Set 4.280 Bore -3.4cc

The MAHLE PISTONS BBC FT Power-Pak Piston Set 4.280 Bore -3.4cc is a forged piston and ring kit engineered for big block Chevy engines requiring precision bore sizing and compression tuning. This complete set delivers the controlled compression geometry and ring groove configuration necessary for high-performance engine builds where exact displacement and compression ratio management are critical to achieving target horsepower and torque outputs.

The 4.280-inch bore specification combined with the minus 3.4 cubic centimeter dish provides engineered compression reduction, allowing builders to dial in specific performance parameters without sacrificing durability. The 1.5 x 1.5 x 3.0 mm ring groove configuration ensures proper ring seating and blow-by control across varying RPM ranges and load conditions. Forged construction throughout the piston set delivers the strength and thermal stability demanded by high-output big block applications, whether naturally aspirated or boosted. Each piston is manufactured to MAHLE's precision standards, ensuring consistent bore fit and ring clearance across the complete kit.

This piston set serves engine builders, performance shops, and serious hot rod enthusiasts building or rebuilding big block Chevy platforms where OEM pistons don't meet compression or bore requirements. Whether constructing a street performance engine, a race-ready platform, or a restoration build requiring specific compression geometry, this kit provides the precision tooling needed to achieve engineered specifications. The BBC FT Power-Pak is specified by builders who prioritize bore accuracy, ring stability, and predictable combustion chamber volume—critical factors in engines where every compression point impacts power delivery and reliability.