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Product Summary

  • Has a 3.480 crankshaft stroke and a 5.70 rod length
  • A forced pin oiling is used for increased wrist pin lubrication
  • It fits SBC 350 c.i. applications and is made from 4032 forged aluminum
  • Mahle designed this kit as a completely finished drop in piston assembly
  • Choose between 4.030, 4.040, and 4.060 bore size to custom fit your application

Key Specs

MFG. Part #
Piston StyleFlat Top
Piston MaterialForged Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating

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Details

The Mahle PowerPak was designed as a completely finished drop in piston assembly. Other then filling the included performance ring set, everything is done for you. Designed from 80+ years of piston manufacturing for everything from OEM to Formula1, only the best technology is used to make these pistons. They are forged from 4032 low expansion aluminum alloy for high strength and reduced piston to wall clearance. Forced Pin Oiling is used for increased wrist pin lubrication. Pin bores are CNC precision machined. .927" High Quality Steel Wrist Pin (118g), Performance 1, 1, 2.0mm rings, and Race Proven Round Wire Locks are included.

  • Fits SBC 350 c.i. applications
  • Choose between 4.030, 4.040, and 4.060 bore size
  • 3.480 crankshaft stroke
  • 5.70 rod length
  • Flat top piston type
  • 1.55 compression height
  • 4032 forged aluminum

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #
BrandMAHLE
Piston StyleFlat Top
Piston MaterialForged Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating
GENERAL
Speedway Motors Catalog Part #503-93020
Piston Diameter
Stroke3.480"
Connecting Rod Length5.700"
Piston Weight
Wrist Pin Weight118 grams
Compression 64cc =10.5 : 1
Sold in QuantityEach