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Mahle PowerPak Piston and Ring Kits
Piston and Ring Kit, Forged, Flat, 4.050 in. Bore, Chevy, Kit
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
197726850
Part Type:
Product Line:
Summit Racing Part Number:
MLE-197726850
Piston Rings Included:
Yes
Bore (in.):
4.050 in.
Bore (mm):
102.870mm
Stroke:
3.500 in.
Rod Length:
6.000 in.
Piston Style:
Flat top, with four valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.250 in.
Piston Head Volume (cc):
+9.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
1.00mm x 1.00mm x 2.00mm
File Fit:
No
Gapless:
No
Top Ring Thickness:
1.0mm
Top Ring Material:
Steel
Top Ring Facing Material:
Gas nitrided
Second Ring Thickness:
1.0mm
Second Ring Material:
Cast iron
Second Ring Facing Material:
Cast iron
Oil Ring Thickness:
2.0mm
Oil Ring Material:
Carbon steel
Oil Ring Facing Material:
Chrome
Oil Ring Tension:
Standard
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
Designed for use with Dart 44cc cylinder heads and other 21 degree angle milled heads. Gas ported with asymmetrical valve pockets.
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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