Part Number:
SRP-146508

SRP Pistons 146508 Forged Pontiac 428 Flat Top 4.188 Bore

SRP Pistons, Pontiac 440, Bore 4.188, Stroke 4.000, Rod Length 6.625, Flat Top -5.0cc, 526 Grams, Set of 8

$775.99
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⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
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SRP Professional pistons are the most advanced lightweight FSR forging that offers superior strength. SRP pistons are up to 20% lighter than traditional equivalent pistons. High-silicon 4032 aluminum alloy for reduced piston-to-wall clearance and quiet operation. Accumulator grooves for improved ring seal. Designed for normally aspirated or moderate forced induction nitrous engine applications. SRP professional pistons come standard with high-performance skirt coating and low drag performance piston rings.

Includes:
  • 4032 low expansion high silicon aluminum alloy heat treated to SRP specifications
  • Forced Pin Oiler for the increased wrist pin lubrication
  • Pin fitting and double spiro locks included
  • 980-2750-150 wall wrist pin (135g) included
  • CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Sold Separately)

    Compression Ratio:
  • 72cc 11.6:1
  • 80cc 11.0:1
  • 84cc 10.0:1
    Note: *Made to order.*
  • More Information
    CNC Part Number SRP-146508
    Price $775.99
    Sold As Set
    Manufacturer's Part Number 146508
    Brands SRP
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Pontiac
    Bore Size 4.188
    Crankshaft Stroke 4.000
    Rod Length 6.625
    Piston Type Flat Top
    Compression Height 1.590
    Piston Material 4032 Forged
    Piston Ring Size 1/16 1/16 3/16
    Wrist Pin Size 0.980
    Custom Notices ⚠ PROP 65 WARNING

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