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Part Number:
SRP-338173

SRP Pistons 338173 Forged Inverted Dome 4.320 Bore

SRP Pistons, BBC 498, Bore 4.320, Stroke 4.250, Rod Length 6.385, Dish -9.0cc, 540 Grams, Set of 8

Special Price $770.39 Regular Price $855.99
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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.
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.

  • Ring land and crown thickness specifically engineered for mild turbo, supercharged, and nitrous applications.
  • Forced pin oiler for increased wrist pin lubrication
  • CNC machined domes with radiused valve reliefs provide optimum flame travel
  • Pin fitting and double spiro locks (#990-042-CS) included
  • 990-2930-15-51S wrist pins (150 grams) included.
  • CNC Machined ring grooves accept 1/16, 1/16, 3/16mm rings (Rings Sold Separately)
  • Pin upgrade available

    Compression Ratio:
  • 112cc 8.8:1
  • 118cc 8.4:1
  • 124cc 8.1:1
    Note: *Oil rail supports included. Made to order.*
  • More Information
    CNC Part Number SRP-338173
    Price $855.99
    Manufacturer's Part Number 338173
    Brands SRP
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy BB
    Bore Size 4.320
    Crankshaft Stroke 4.250
    Rod Length 6.385
    Piston Type Dish
    Compression Height 1.270
    Piston Material 4032 Forged
    Piston Ring Size 1/16 1/16 3/16
    Wrist Pin Size 0.990
    Custom Notices ⚠ PROP 65 WARNING
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