Product Summary

Dish Top w/ 2 Valve Reliefs Piston Style, 3.48 Stroke

  • Forged 4032 aluminum pistons provide excellent strength and thermal stability for demanding racing conditions
  • Lightweight piston design helps reduce reciprocating mass for improved engine response
  • Ideal for circle track racers, crate engine competitors, and performance engine builders
  • Includes a premium MAHLE performance ring package engineered for excellent sealing and durability.
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Key Specs

BrandMAHLE
Piston StyleDish Top w/ 2 Valve Reliefs
Piston MaterialForged Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit
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Details

When you're building a tough, dependable Small Block Chevy that has to survive lap after lap of hard racing, these MAHLE Forged Piston & Ring Sets deliver the strength and precision serious racers demand. Designed for the popular GM 602 crate engine platform, this premium forged piston package combines lightweight performance with legendary MAHLE engineering to maximize durability, ring seal, and horsepower. Featuring high-quality 4032 forged aluminum construction, a performance ring package, and MAHLE's race-proven manufacturing standards, this kit is ready to handle everything from weekend oval track competition to all-out grassroots racing.

Whether you're freshening up a crate engine or assembling a reliable race-winning combination, the 930203905 piston set offers the performance edge needed to keep you in the throttle and out front.


Features & Benefits

  • Forged 4032 aluminum pistons provide excellent strength and thermal stability for demanding racing conditions.
  • Designed specifically for GM 602 crate engine applications.
  • Lightweight piston design helps reduce reciprocating mass for improved engine response.
  • Includes a premium MAHLE performance ring package engineered for excellent sealing and durability.
  • High-quality wrist pins and race-proven components for long-term reliability. 
  • Precision-machined for consistent cylinder sealing and dependable power production. 
  • Ideal for circle track racers, crate engine competitors, and performance engine builders.
  • MAHLE engineering delivers championship-level durability and trusted motorsports performance. 

Perfect For

  • GM 602 Crate Engine Rebuilds
  • Circle Track Racing
  • Sportsman Racing Classes
  • Street/Strip SBC Performance Builds
  • Engine Builders Seeking Proven MAHLE Quality

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
BrandMAHLE
Piston StyleDish Top w/ 2 Valve Reliefs
Piston MaterialForged Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit
GENERAL
Piston Diameter
Dome Height-10.8cc
Stroke3.48
Connecting Rod Length5.700"
Piston Weight
Piston Ring StyleE
Wrist Pin Diameter0.927
Wrist Pin Weight160g
Piston Ring DesignConventional
Piston Rings IncludedYes
Top Ring Thickness1.5 mm
Second Ring Thickness1.5 mm
Oil Ring Thickness3.0 mm
Compression 58cc =10.3 : 1
Compression 64cc =
Sold in QuantitySet
Engine Displacement
Bore Size4.00
Compression Height1.559
File FitYes
Wrist Pin Retainers IncludedNo

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