(930221525) by MAHLE PISTONS Engine Piston Kit, 427ci, 4.125bore, 4.000stroke Forged Flat Top

Your Price: $747.35
Piston Systems – Competence in Powertrain: The development and production of pistons and piston systems has always been a core competence of Mahle. On the basis of integrated, international development work, we create integrated system solutions for our customers with high-end engineering and state-of-the-art methods - for example, piston assemblies and complete power cell modules. Economically. Reliably. Every detail of the individual components is perfectly adapted to the complete system. Whether for the engine of an economical but powerful small car, for a luxury limousine or for heavy-duty commercial vehicles.
Part Number: 4380
Availability: In Stock

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Mahle Forged Piston Set, 4.125" Bore Size, Valve Reliefs to Accommodate LS7 Cylinder Heads, 4.00" Stroke, Stock LS7 6.067" Rod Length, 1.181" CH, -3cc Flat-Top, Includes Ring Set.
LS 7.0L FLAT TOP - compatible with LS7 style heads  1.0, 1.0, 2.0mm File Fit Performance Ring Set Included

Improved Coating for Less Friction:
The piston skirt for gasoline engines with cast or steel cylinder surfaces is usually coated with GRAFAL at Mahle. GRAFAL helps to reduce friction and hence increases the scuffing resistance. A further advantage of GRAFAL-coated pistons: They enable a closer fitting clearance which leads to significantly lower engine noise in conjunction with complex piston forms.

For the application in aluminum cylinder surfaces, Mahle uses the iron particle reinforced synthetic resin coating FERROPRINT. Mahle's new FerroTec galvanic iron layer is another ongoing development available on the market. The FerroTec technology coats the entire skirt evenly, resulting in improved running properties. These coatings are necessary to enable the combination of aluminum pistons with pure aluminum engine blocks and hence represent an essential contribution to an overall reduction in engine weight.

Mahle uses a 4032 silicon forging on the vast majority of their LS-based pistons.

Designed for Use with the LS7 Cylinder Heads
Small Nitrous Applications & Small Boost Levels up to 10 psi
Offset Wrist Pins for Quiet Operation
Ratios Figured for -.008" (positive) deck @ 9.240"
Includes 1.0mm x 1.0mm x 2.0mm Ring Package
Wrist Pins Included

Product Info
Alternate Description
428CID 4.125 X 1.181CH 4.000STROKE6.067ROD0.92
Part Number
Vendor Part Number
Package Weight
14.00 lbs
6.35 kg
Package Length
13.75 in
34.93 cm
Package Width
11.5 in
29.21 cm
Package Height
6.5 in
16.51 cm

“WARNING”: This product may contain a chemical(s) known to the State of California to cause cancer and/or birth defects or other reproductive harm.  www.P65Warnings.ca.gov”

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