Image is a representation of this item. Actual item may vary.
Part Number:
JE-312090

JE Pistons 312090 GM LS3 Asymmetrical FSR Dome 4.065 Bore

JE Pistons, Forged, LS3 376, Bore 4.065, Stroke 3.622, Rod Length 6.098, Dome +10.0cc, Set of 8

Special Price $915.29 Regular Price $1,016.99
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.
JE Pistons new GM LS Inverted dome Asymmetrical FSR (Forged Side Relief) forging design allows for the use of the most popular stroke and rod combinations while eliminating reluctor wheel clearance problems. Asymmetrical forging design maintains a larger skirt on the heavily stressed major thrust side, while reducing friction with a smaller skirt on the minor thrust side. The result is a high strength, lightweight piston that significantly reduces friction in your engine. Lightweight and extremely durable, JE pistons are machined for 1.2mm, 1.5mm, 3.0mm rings. Combination 12° & 15° Valve Pockets

Includes:
  • Accumulator Grooves
  • Double Pin Oilers
  • Offset Wrist Pin
  • Pin #945-2250-15-51C (105g
  • Round Wire Locks # 927-073-MW

    Compression Ratio:
  • 64cc 13.2:1
  • 68cc 12.5:1
  • 70cc 12.2:1
  • More Information
    CNC Part Number JE-312090
    Price $1,016.99
    Manufacturer's Part Number 312090
    Brands JE
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy LS
    Bore Size 4.065
    Crankshaft Stroke 3.622
    Rod Length 6.098
    Piston Type Dome
    Compression Height 1.340
    Piston Material 2618 Forged
    Piston Ring Size 1.2mm 1.5mm 3.0mm
    Wrist Pin Size 0.945
    Custom Notices ⚠ PROP 65 WARNING

    Upsell Products

    Other Customers Also Bought
    PART #: MAN-11752-8 SBC Manley Severe Duty Intake Valves 2.100 11752-8
    SBC Manley Severe Duty Intake Valves 2.100 11752-8
    $311.48
    PART #: ARP-400-7507 ARP-400-7507
    ARP Cast Aluminum Valve Cover Bolt Kit 400-7507
    Special Price $16.42 Regular Price $17.95
    PART #: UEM-IC717-080 Icon Pistons IC717-080 Fits SBC 350 Flat Top 4.9cc Bore 4.080
    Icon Pistons IC717-080 Fits SBC 350 Flat Top 4.9cc Bore 4.080
    Special Price $739.87 Regular Price $762.75
    PART #: CAR-SCR5323 5323 Carrillo Pro-H Beam Connecting Rods - Cosworth/ Ford/ Lotus, 4.928"
    SCR5323 Carrillo Pro-H Beam Connecting Rods - Cosworth/ Ford/ Lotus, 4.928"
    Special Price $1,386.54 Regular Price $1,459.52
    PART #: CAL-181-027 Chevy LT N/A 224 Hydraulic Roller Camshaft
    Chevy LT N/A 224 Hydraulic Roller Camshaft
    $422.95
    PART #: ATT-1001807 Auto Tec Pistons 1000804 Forged Twisted Wedge Dish 4.030 Bore, SB Ford 408
    Auto Tec Pistons 1001807 4.440 Bore, Big Block Ford
    $873.00
    PART #: ESP-CRS6243H3D2000 Eagle CRS6243H3D2000 H Beam Connecting Rods, Chrysler 5.7L 6.1L Hemi, 6.243 Length
    Eagle CRS6243H3D2000 H Beam Connecting Rods, Chrysler 5.7L 6.1L Hemi, 6.243 Length
    Special Price $649.30 Regular Price $665.95
    PART #: SCA-4-426-4500-6800-2200-3 Scat 4-426-4500-6800-2200-3 Superlight 4340 Forged Steel Crankshaft
    Scat 4-426-4500-6800-2200-3 Superlight 4340 Forged Steel Crankshaft
    $3,346.95