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Pistons, Powerpak, GM 604 Crate, Forged Aluminum, Flat Top, 4.011 in. Bore, 3.480 in. Stroke, Chevy, 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:
930127811
Part Type:
Product Line:
Summit Racing Part Number:
MLE-930127811
Piston Rings Included:
No
Bore (in.):
4.011 in.
Bore (mm):
101.879mm
Stroke:
3.480 in.
Actual Engine Displacement:
5.8L/351
Rod Length:
5.700 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.559 in.
Piston Head Volume (cc):
+4.90cc
Wrist Pin Style:
Press-fit
Wrist Pin Retainers Included:
No
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
2.00mm x 1.50mm x 4.00mm
File Fit:
No
Gapless:
No
Top Ring Thickness:
2.0mm
Second Ring Thickness:
1.5mm
Oil Ring Thickness:
4.0mm
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
Drop-in replacement pistons for the GM 604 crate engine.
Mahle PowerPak Pistons
Mahle PowerPak pistons are forged pistons with steel pins and wire locks. 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. Part numbers with T on the end have a cutting edge ceramic-based thermic barrier. The barrier is resistant to thermal shock, insulates the piston crown, and reduces heat transfer to increase performance. These replacement pistons are available in a wide variety of size options for fitment with specific engines and pistons.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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