(0)
Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith
Large Image
CLOSE [X]

MAHLE S/B Chevy 400 Powerpak Pistons

Price: $649.99 - $699.99
Click image to enlarge Click image to enlarge
No video at this time.
 

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 400 c.i. S/B Chevy (4.125" bore x 3.75" stroke).

PowerPak Piston Chart

  • 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 binished on CNC boring equipment
  • Deburred
  • High strength, light weight steel pins
  • Race proven round wire locks
  • Low drag ring pak
  • Lightweight slipper kirt forgings
  1. Mahle’s Grafal skirt coating reduces drag, scuffing, friction and cylinder bore wear; reduces piston noise.
  2. Phosphate coating provides the grey appearance to the Mahle 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.
  • Comp Height 5.7" Rod:  1.425
  • Comp Height 6.0" Rod:  1.250
  • 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.

Reviews for Item #: 50342515
Be the first to review this product. Write a Review
 

Questions and Answers for Item #: 50342515

Get your questions answered by the community. Ask or answer questions below.

Processing
Be the first to submit a question. Click the "Ask a Question" button to continue.
Email this page
Close [x]
You can send this product by email to a friend!
Enter the required information in the spaces provided below. They will receive an Email with the picture of this product and a link back to our site.
Your Name:
Your Email:
Friends Name:
Friends Email:
Print Page
SBC425155F05 - CHEVY 400 FLATTOP POWERPAK PISTONS
Item #:
50342515
Item Details:
C/R 64cc=11.8
Piston Weight: 477 g
Rod Length: 5.7"
 
(0 Rating)
SBC125155F05 - CHEVY 400 FLATTOP POWERPAK PISTONS
Item #:
50312515
Item Details:
C/R 58cc=12.6, 64cc=11.8, 70cc=10.9
Piston Weight: 448 g
Rod Length: 6"
 
(0 Rating)
SBC425155D04 - CHEVY 400 DOME POWERPAK PISTONS
Item #:
50342514
Item Details:
C/R 58cc=14.2, 64cc=13.0, 70cc=12.1
Piston Weight: 504 g
Rod Length: 5.7"
 
(0 Rating)
SBC125155D04 - CHEVY 400 DOME POWERPAK PISTONS
Item #:
50312514
Item Details:
C/R 58cc=14.2, 64cc=13.0, 70cc=12.1
Piston Weight: 462 g
Rod Length: 6"
 
(0 Rating)