MAHLE 930202550 PowerPak Forged Piston Kit 361ci 4.050" Bore 10.7:1 CR 4032 Alloy

The MAHLE 930202550 PowerPak Piston Kit is a race-proven forged piston assembly engineered for high-performance V8 engine builds displacing 361 cubic inches. Machined from 4032 aluminum alloy, these pistons offer excellent thermal stability and tighter cylinder-to-wall clearances compared to 2618 alloy, making them an ideal choice for street/strip and competition engines that demand consistent performance and reduced piston rock.

Key Specifications:

• Displacement: 361 cubic inches
• Bore Diameter: 4.050"
• Stroke: 3.500"
• Rod Length: 5.700"
• Compression Height: 1.550"
• Pin Diameter: 0.927"
• Crown Volume: -4cc (dished/flat top)
• Piston Weight: 410g
• Compression Ratio: 10.7:1
• Alloy: 4032 Forged Aluminum

Key Features:

• Forged 4032 aluminum alloy construction for superior strength and low thermal expansion
• CNC-machined crown with hand-deburred finishing for precise, consistent tolerances
• Lightweight slipper skirt forging reduces reciprocating mass for improved engine response
• Forced pin oiling with machined drain backs for reliable lubrication under high-RPM conditions
• Proprietary Grafal anti-friction skirt coating reduces friction and extends piston life
• Phosphate dry lubricant coating on pin bores and ring grooves protects against micro-welding and galling during initial start-up and break-in
• Kit includes forged pistons, high-quality steel wrist pins, round wire locks, and low-drag performance rings

The MAHLE PowerPak 930202550 is suited for engine builders seeking a complete, ready-to-assemble piston package with tight tolerances and race-validated durability. The 4032 alloy allows for tighter piston-to-wall clearances, resulting in quieter operation and improved longevity compared to softer alloys commonly used in extreme-duty applications.