Image is a representation of this item. Actual item may vary.
Part Number:
JE-338686

JE Pistons 338686 GM LT1 (Gen V) Asymmetrical FSR Dome 4.070 Bore

JE Pistons, Forged, LT1 416, Bore 4.070, Stroke 4.000, Rod Length 6.125, Dome -4.8cc, 454 Grams, 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 Piston's new GM LT1 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, a 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.
Includes:
  • Accumulator Grooves
  • Double Pin Oilers
  • Offset Wrist Pin
  • Pin #927-2250-15-51C (106g) and #943-2250-20-51C
  • Round Wire Locks # 927-073-MW
    Compression Ratio:
  • 59cc 12.3:1
    Note: Stock rods must be honed to accept .927" Diameter Pin. Milling of rod balance PAD may be needed due to variation from Factory.
  • More Information
    CNC Part Number JE-338686
    Price $1,016.99
    Manufacturer's Part Number 338686
    Brands JE
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy LT
    Bore Size 4.070
    Crankshaft Stroke 4.000
    Rod Length 6.125
    Piston Type Dome
    Compression Height 1.115
    Piston Material 2618 Forged
    Piston Ring Size 1.2mm 1.5mm 3.0mm
    Wrist Pin Size 0.927
    Custom Notices ⚠ PROP 65 WARNING

    Upsell Products

    Other Customers Also Bought
    PART #: CP-SC7310PVD CP Pistons SC7310
    SC7310PVD CP Pistons, Forged, Nissan - 3.406 (86.50mm) Bore, 8.5:1
    Special Price $1,181.68 Regular Price $1,327.73
    PART #: FEL-260-1028 260-1028 Sealed Power Gasket Set - Ford 351W 5.8L
    260-1028 Sealed Power Gasket Set - Ford 351W 5.8L
    $76.95
    PART #: MAN-591630-8 591630-8
    Manley 591630-8 4 Barrel Class Forged Flat Top Pistons 4.030 Bore
    $816.90
    PART #: UEM-IC964-STD Icon Pistons IC964-STD Fits SBC 395 Dome 2.9cc Bore 4.000
    Icon Pistons IC964-STD Fits SBC 395 Dome 2.9cc Bore 4.000
    Special Price $929.68 Regular Price $958.43
    PART #: CAL-04893290AA 04893290AA Callies 58 Tooth Tone Ring
    04893290AA Callies 58 Tooth Tone Ring
    $75.00
    PART #: CAR-SCR5313 5313 Carrillo Pro-SA Beam Connecting Rods - Chrysler/ Dodge SRT4 (2.4L), 5.945"
    SCR5313 Carrillo Pro-SA Beam Connecting Rods - Chrysler/ Dodge SRT4 (2.4L), 5.945"
    Special Price $1,169.07 Regular Price $1,230.60
    PART #: ATT-1001729 Auto Tec Pistons 1000804 Forged Twisted Wedge Dish 4.030 Bore, SB Ford 408
    Auto Tec Pistons 1001729 Dish 4.135 Bore Chevy LS
    $777.00
    PART #: TS-CRG2010-5 CRG2010-5
    Total Seal Classic Race Piston Ring Set CRG2010-5
    $168.64