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Mahle PowerPak Piston and Ring Kits
Pistons, PowerPak Piston and Ring Kits, Stroked, 4.270 in. Bore, Forged Aluminum, Flat Top, Rings, Ford, 427, Set of 8
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
930266070
Part Type:
Product Line:
Summit Racing Part Number:
MLE-930266070
Piston Rings Included:
Yes
Bore (in.):
4.270 in.
Bore (mm):
108.458mm
Stroke:
4.250 in.
Engine Stroke Type:
Stroked
Actual Engine Displacement:
8.0L/487
Rod Length:
6.700 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.325 in.
Piston Head Volume (cc):
+8.80cc
Wrist Pin Style:
Floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.990 in.
Piston Ring Thickness:
1.00mm x 1.00mm x 2.00mm
File Fit:
Yes
Gapless:
No
Top Ring Thickness:
1.0mm
Top Ring Material:
Steel
Top Ring Facing Material:
HV385 Thermal
Second Ring Thickness:
1.0mm
Second Ring Material:
Steel
Second Ring Facing Material:
Phosphate coated
Oil Ring Thickness:
2.0mm
Oil Ring Material:
Stainless steel
Oil Ring Facing Material:
Chrome
Oil Ring Tension:
Standard
Remanufactured:
No
Quantity:
Sold as a set of 8.
Mahle PowerPak Piston and Ring Kits
Mahle PowerPak piston and ring kits include forged pistons, low-drag rings, steel pins, and wire locks—all in one race-proven package. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup. For additional performance, Mahle added its proprietary Grafal anti-friction coating to the piston skirts. These replacement packages are available in a wide variety of size options for fitment with specific engines and pistons.
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Some parts are not legal for use in California or other states with similar laws / regulations
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