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MAHLE S/B Chevy 383 Powerpak Pistons

Price: $649.99 - $699.99
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  • MAHLE S/B Chevy 383 Powerpak Pistons
  • MAHLE S/B Chevy 383 Powerpak Pistons
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The Mahle PowerPak pistons are a race proven lightweight forged design that are complete with rings, wrist pins and locks.  They are also completely phosphate coated plus feature an anti-friction Grafal skirt coating.  PowerPak pistons are made from 4032 aluminum alloy to allow for tighter cylinder to wall clearances, and improved temperature stability.

1.5mm, 1.5mm, 3.0mm file fit performance ring set is included. For 383 c.i. S/B Chevy (4.000" bore x 3.75" stroke). Choose oversize diameter needed.

PowerPak Piston Chart

Power Pak features include:
  • Forged piston for performance applications
  • Fully-machined crown
  • Grafal anti-Friction coating on skirts
  • Phosphate-coated to reduce micro-welding and pin galling
  • Pin bores finished on CNC boring equipment
  • Deburred
  • High strength, light weight steel pins
  • Race proven round wire locks
  • Low drag ring pak
  • Light weight slipper kirt forgings
  1. Mahle's phosphate coating provides the grey appearance to the piston. This dry lubricant coating (not to be confused with a thermal film coating) provides a lubricant film in the pin bores and ring grooves until the oiling system of the engine reaches operating pressure; particularly useful during the initial start-up or break-in of engines to protect against galling and microwelding. The piston crown is still machineable.
  2. Mahle’s GRAFAL skirt coating reduces drag, scuffing, friction and cylinder bore wear; reduces piston noise.
  • Comp Height 5.7" Rod:  1.425
  • Comp Height 6.0" Rod:  1.125
  • Pin Diameter:  0.927
  • Clearance Guide
    • *Meas. = 0.500
    • Min = 0.0025
    • Max = 0.0033

*The location to measure piston-to-wall clearance for each application. This point is calculated from the bottom of the piston skirt and indicates the widest part of the piston and thus where to measure.

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SBC425030I26 - CHEVY 383 INVERTED DOME POWERPAK PISTONS
Item #:
50342526
Item Details:
C/R 58=9.5, 64cc=9.0, 70cc=8.5
Piston Weight: 452 g
Rod Length: 5.7"
 
(0 Rating)
SBC425030F05 - CHEVY 383 FLATTOP POWERPAK PISTONS
Item #:
50342505
Item Details:
C/R 58cc=12.0, 64cc=11.3, 70cc=10.4
Piston Weight: 451 g
Rod Length: 5.7"
 
(0 Rating)
SBC125030F05 - CHEVY 383 FLATTOP POWERPAK PISTONS
Item #:
50312505
Item Details:
C/R 64cc=11.3
Piston Weight: 406 g
Rod Length: 6"
 
(0 Rating)
SBC425030D11 - CHEVY 383 DOME POWERPAK PISTONS
Item #:
50342511
Item Details:
C/R 58cc=15.2, 64cc=13.8, 70cc=12.6
Piston Weight: 484 g
Rod Length: 5.7"
 
(0 Rating)
SBC125030D11 - CHEVY 383 DOME POWERPAK PISTONS
Item #:
50312511
Item Details:
C/R 58cc=15.2, 64cc=13.8, 70cc=12.6
Piston Weight: 444 g
Rod Length: 6"
 
(0 Rating)