Image is a representation of this item. Actual item may vary.
Part Number:
SRP-329658

SRP Pistons 329658 Forged 350/ 400 Dome 4.135 Bore

SRP Pistons, SBC 403, Bore 4.135, Stroke 3.750, Rod Length 6.000, Dome +4cc, 432 Grams, Set of 8

Special Price $722.69 Regular Price $802.99
View Similar Items
⚠ 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 2618 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.

  • Designed for use with the most popular 23° heads
  • CNC machined domes with radiused valve reliefs provide optimum flame travel.
  • Optional bearing steel pins available
  • Pin fitting and double spiro locks included.
  • 927-2750-150 wall wrist pin (130 grams) included
  • CNC Machined ring grooves accept 1/16, 1/16, 3/16mm rings (Rings Sold Separately)

    Compression Ratio:
  • 58cc 14.0:1
  • 64cc 12.9:1
  • 70cc 11.8:1
    Note: *Made to order. Oil rail supports included.*
  • More Information
    CNC Part Number SRP-329658
    Price $802.99
    Manufacturer's Part Number 329658
    Brands SRP
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy SB
    Bore Size 4.135
    Crankshaft Stroke 3.750
    Rod Length 6.000
    Piston Type Dome
    Compression Height 1.125
    Piston Material 2618 Forged
    Piston Ring Size 1/16 1/16 3/16
    Wrist Pin Size 0.927
    Custom Notices ⚠ PROP 65 WARNING

    Upsell Products

    Other Customers Also Bought
    PART #: JE-314660 JE Pistons 314660 Forged 5.4L Modular 2V Dish 3.701 Bore
    JE Pistons 314660 Forged 5.4L Modular 2V Dish 3.701 Bore
    Special Price $890.99 Regular Price $989.99
    PART #: RTT-1001399 Race Tec Pistons 1001399 Forged Flat Top 4.030 Bore, SB Ford 347
    Race Tec Pistons 1001399 Forged Flat Top 4.030 Bore, SB Ford 347
    $1,097.00
    PART #: CCA-CL35-440-8 Comp Cams CL35-440-8 Magnum Hydraulic Roller Camshaft and Lifter Kit
    Comp Cams CL35-440-8 Magnum Hydraulic Roller Camshaft and Lifter Kit
    $911.95
    PART #: UEM-IC829-040 Icon Pistons IC829-040 Fits BB Chrysler 520 Flat Top 4.5cc Bore 4.360
    Icon Pistons IC829-040 Fits BB Chrysler 520 Flat Top 4.5cc Bore 4.360
    Special Price $809.66 Regular Price $834.70
    PART #: DRP-11551-R1-8 11551-R1-8 Diamond Pistons Forged LS2 L92 Dish 4.005 Bore
    11551-R1-8 Diamond Pistons Forged LS2 L92 Dish 4.005 Bore
    $1,140.94
    PART #: UEM-KB140-060 Keith Black Pistons KB140-060 Fits SBC 400 Dome .5cc Bore 4.185
    Keith Black Pistons KB140-060 Fits SBC 400 Dome .5cc Bore 4.185
    Special Price $445.66 Regular Price $452.45