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Part Number:
ATT-1000776

Auto Tec Pistons 1000776 Forged Boss 429 Flat Top 4.390 Bore, BB Ford 521

Auto Tec Pistons, BBF 521, Bore 4.390, Stroke 4.300, Rod Length 6.800, Flat Top -5.0cc, Set of 8 Pistons

$799.00
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DROP SHIP
This product is a non-stocking item for CNC-Motorsports and will be shipped directly from the manufacturer / supplier.
⚠ 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 have CNC Machined ring grooves that accept 1/16", 1/16", 3/16" rings. (Rings Sold Separately) 1.040-2800-51-15C wrist pin or 990-2800-51-15C wrist pin, pin fit, wire locks, broached pin oilers and accumulator grooves are included. Diamond Turned skirts.

Compression Ratio:
  • 95cc 10.5:1
  • More Information
    CNC Part Number ATT-1000776
    Price $799.00
    Manufacturer's Part Number 1000776
    Brands AutoTec
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Ford BB
    Bore Size 4.390
    Crankshaft Stroke 4.300
    Rod Length 6.800
    Piston Type Flat Top
    Compression Height 1.320
    Piston Material 4032 Forged
    Piston Ring Size 1/16 1/16 3/16
    Wrist Pin Size 0.990

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