Image is a representation of this item. Actual item may vary.
Part Number:
SRP-140347

SRP Pistons 140347 Forged 350/ 400 Dome 4.020 Bore

SRP Pistons, SBC 381, Bore 4.020, Stroke 3.750, Rod Length 6.000, Dome +7cc, 417 Grams, Set of 8

Special Price $674.09 Regular Price $748.99
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 12.8:1
  • 70cc 11.8:1
    Note: *Made to order. Oil rail supports included.*
  • More Information
    CNC Part Number SRP-140347
    Price $748.99
    Manufacturer's Part Number 140347
    Brands SRP
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy SB
    Bore Size 4.020
    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 #: PRW-2045473 PRW 2045473 - Flexplate, Big Block Chevy 454 168 Teeth, Black
    PRW 2045473 - Flexplate, Big Block Chevy 454 168 Teeth, Black
    $142.95
    PART #: RTT-1001312 Race Tec Pistons 1001130 Forged 23° Dome 4.165 Bore, SB Chevy 436
    Race Tec Pistons 1001312 Forged Dish 4.560 Bore, BB Chevy 523
    $1,097.00
    PART #: HOW-510931-11 Howards Camshaft 510931-11 Hydraulic Flat Tappet Oldsmobile V8
    Howards Camshaft 510931-11 Hydraulic Flat Tappet Oldsmobile V8
    $252.95
    PART #: AED-850HB-RD 1
    850HB-RD AED HO Series Competition Blower Carburetor, Gas
    $859.95
    PART #: SCA-9-400-3500-6000 Scat 9-400-3500-6000 9000 Series Cast Steel Pro Comp Crankshaft
    Scat 9-400-3500-6000 9000 Series Cast Steel Pro Comp Crankshaft
    $368.95
    PART #: MAN-11376-8 Manley 11376-8 Race Flo Intake Valves
    Manley 11376-8 Race Flo Intake Valves
    $211.14
    PART #: HOL-12-132 12-132 HOLLEY IN-TANK RETROFIT FUEL MODULE
    12-132 HOLLEY IN-TANK RETROFIT FUEL MODULE
    $899.95
    PART #: HOW-91170 Howards SB Chevy Pro Max High RPM Hydraulic Roller Lifters 91170
    Howards SB Chevy Pro Max High RPM Hydraulic Roller Lifters 91170
    $1,176.95
    PART #: PRW-1830214-OS 1830214
    PRW 1830214-OS Platinum Series SFI Rated Flexplate, 157 Tooth, SB Ford
    $113.95