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Mahle Motorsport 930221630 LS7 4.130" Bore 427 Forged Flat Top Piston and Ring Kit with 6.125" Rod

930221630
Sale Price: $720.00
Price: $858.33

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Mahle Motorsport 930221630 LS7 4.130" Bore 427 Forged Flat Top Piston and Ring Kit with 6.125" Rod

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LS7 427 forged aluminum replacement piston that will require a 6.125" connecting rod. Includes pistons, file-fit ring set, pins, and locks. If you are building a LS7 427 from the ground up and using an aftermarket crankshaft and steel connecting rods, this is the perfect piston for your LS7 engine build. 4032 forged aluminum piston kit from Mahle. NOTE: Previous part number is LS710530F03, this has been replaced with 930221630.

Piston Specs & Info
Bore 4.130”
Stroke 4.000”
Conn Rod Length 6.125”
Dome/Dish Vol -3cc
C.H. 1.105”
Ring Size 1.0MM/1.0MM/2.0MM
Oil Support Rail (Y/N) Y
Pin Diameter 0.927”
Pressed (P) or Floating (F) F
Approx. Weight (grams) 440
Piston Material 4032 Forged Aluminum

 

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Was: $858.33
Sale: $720.00
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Description

Compression Ratio Chart*
Compressed Gasket Thickness Combustion Chamber Size
64cc 66cc 72cc
0.051” 12.3 12.0 11.2
0.040” 12.6 12.3 11.5
*This Compression Ratio Chart is for reference only. Your final compression ratio numbers must be determined by a professional engine builder. Compression ratio is affected by deck heights, head gasket thickness, combustion chamber size and other factors that can be altered and or set by your machine shop and engine builder.

 Technical Notes & Replacement Parts

  • We do NOT recommend using these pistons with a stock GM Z06 427 crankshaft. The balance weight of the factory titanium connectings rod and hyperutectic pistons is extremely light and using this piston and steel connecting rod combination will require an expensive amount of heavy metal  

Mahle Pistons Features

  • Fully-Machined Crown and Light Weight Piston Design
  • Grafal® Anti-Friction Coating on Skirts
  • Mahle Black Phosphate-Coating to Reduce Piston Skuffing and Ring Galling*
  • CNC Machined and Hand Deburred for Final Inspection
  • High Strength and Light Weight German Manufactured Piston Pins
  • Mahle Designed "Low Drag" Ring Packs to Reduce Frictional Losses while Maintaining Excellent Ring Seal and Oil Control

*See Mahle Technical Video under the Videos Tab

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