MAHLE 197754330 PowerPak 2618 Forged Piston Kit 357ci 4.030 Bore 13.1/14.0 CR

The MAHLE 197754330 is a PowerPak forged piston kit engineered for high-performance 357 cubic inch engine builds. Forged from premium 2618 aluminum alloy, these pistons deliver exceptional strength and detonation resistance, making them a trusted choice for circle track, drag racing, and high-output street/strip applications.

Each piston is precision-machined to a 4.030" bore diameter with a 1.125" compression height and is designed for use with a 6.125" or 6.0" connecting rod. The 0.927" wrist pin diameter and 12cc crown volume are optimized to achieve compression ratios of 13.1:1 or 14.0:1, depending on rod and stroke combination. Compatible stroke lengths are 3.500" and 3.750".

Key Features:

• 2618 forged aluminum alloy — higher strength and superior detonation resistance vs. cast pistons
• 4.030" bore with precision-machined ring grooves for consistent sealing and low drag
• 1.125" compression height (C/H) for optimized deck clearance
• 0.927" pin diameter with CNC-machined wrist pins and proper clearances
• 12cc crown volume supporting 13.1:1 or 14.0:1 compression ratios
• Compatible rod lengths: 6.125" and 6.0"
• Compatible strokes: 3.500" and 3.750"
• Factory-applied GRAFAL® skirt coating reduces friction, scuffing, and cylinder bore wear
• Phosphate dry lubricant coating on ring grooves and pin bores protects against micro-welding and galling during initial startup
• Hand-deburred and individually inspected for consistent quality

MAHLE's PowerPak kits are a complete, race-proven piston assembly solution backed by decades of OE and motorsport engineering expertise. The 2618 alloy construction is specifically chosen for builds subjected to high cylinder pressures, forced induction, or aggressive ignition timing where maximum durability is required.