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Mahle PowerPak Piston and Ring Kit for 408ci/418ci Small Block Ford, 4032 Alloy (Set of 8)

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930244330
-Combination 1-
Cubic Inches: 408 / 418
Bore: 4.030"
Stroke: 4.000"
Rod Length: 6.250"
Compression Height: 1.245"
Pin Diameter: 0.927"
Crown Volume: -6cc
Weight: 424g
Compression Ratio @ 58cc: 12.5:1
Compression Ratio @ 64cc: 11.6:1
Compression Ratio @ 70cc: 10.9:1
Clearance Meas: 0.50
Clearance Min: 0.0025
Clearance Max: 0.0033


-Combination 2-
Cubic Inches: 418
Bore: 4.030"
Stroke: 4.100"
Rod Length: 6.200"
Compression Height: 1.245"
Pin Diameter: 0.927"
Crown Volume: -6cc
Weight: 424g
Compression Ratio @ 58cc: 12.8:1
Compression Ratio @ 64cc: 11.9:1
Compression Ratio @ 70cc: 11.1:1
Clearance Meas: 0.50
Clearance Min: 0.0025
Clearance Max: 0.0033
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Description

The POWERPAK kit is the racer’s best value. Developed for high-performance enthusiasts and engine builders who want uncompromising reliability, the POWERPAK delivers just that.

These forged piston kits are made from 4032 aluminum alloy, which allows for tighter cylinder-to-wall clearances and improved temperature stability. In addition to fully machined crowns and CNC machined pin bores, the pistons are dual coated with phosphate to reduce micro-welding and pin galling, and the skirt features a GRAFAL® anti-friction coating. Each set includes low-drag rings proven to increase horsepower and torque, clips and application-specific pins—all designed to ensure minimum friction and maximum horsepower.