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Part Number:
ATT-1000307-OS

Auto Tec Pistons 1000307 Forged Dome 4.280 Bore, BB Chevy 489

Auto Tec Pistons, BBC 489, Bore 4.280, Stroke 4.250, Rod Length 6.385, Dome 22.7cc, 567 Grams, Set of 8 Pistons

$599.00
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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.
Auto Tec pistons are manufactured on a forged side relief, 4032 low expansion, high silicon material excellent for street/strip applications. Auto Tec pistons piston offer standard features like broached pin oilers for increased wrist pin lubrication, accumulator grooves, pin fitting wrist pins, wire locks included and 990-2800-51-15C wall wrist pin included. Auto Tec pistons have CNC Machined ring grooves that accept 1.5, 1.5, 3mm rings (Rings Sold Separately)

Compression Ratio:
  • 112cc 11.1:1
  • 118cc 10.5:1
  • 124cc 10.0:1
    Note: Oil rail supports included.
  • More Information
    CNC Part Number ATT-1000307-OS
    Price $599.00
    Manufacturer's Part Number 1000307
    Brands AutoTec
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chrysler BB
    Bore Size 4.280
    Crankshaft Stroke 4.250
    Rod Length 6.385
    Piston Type Dome
    Compression Height 1.270
    Piston Material 4032 Forged
    Piston Ring Size 1.5 1.5 3.0mm
    Wrist Pin Size 0.990
    Custom Notices ⚠ PROP 65 WARNING

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