Icon Pistons IC989-070 Fits BBC 427 489 Dome 38cc Bore 4.320

Fits BB Chevy 427-489, Bore 4.320, fits 427 3.760 Stroke with 6.385 Rod, fits 489 4.250 Stroke with 6.135 Rod, 655 grams, Dome 38cc, Set of 8 Pistons

Special Price $880.46 Regular Price $907.69

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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.

Description

Icon Forged Pistons are forged from high ductile 2618 alloy. With a 1% silicon content 2618 alloy they are formulated and heat treated for the most demanding performance applications such as very high compression ratios, boosted application and nitrous

Crown and valve reliefs are cnc machined

Top land mini groove technology

Skirts machined by UEM's unique in house built cnc machines

Accumulator groove to help eliminate flutter and maximize ring seal

Skirt and pin boss struts designed to withstand heavy loads from high cylinder pressures

Wrist pins and spiral lock rings included

1/16 1/16 3/16 rings not included

Compression Ratio 427 119cc 10.8:1

Compression Ratio 489 119cc 12.0:1

Advertised piston weight 655 grams, 141 gram wrist pin

OE Deck Height 9.800"

Note: Standard bore size is 4.250

Notes: Centered Pin. Hollow Dome. Will fit Afr, Rhs, Trick Flow, World, Edelbrock, Brodix, Dart, & O. E. Chevy Open Chamber Heads That Are 118cc's Or Larger. Always Check Piston To Chamber & Valves To Assure You Have Adequate Operating Clearance

Notes: Ships direct from manufacturer

Specifications

More Information
CNC Part Number	UEM-IC989-070
Price	$907.69
Manufacturer's Part Number	IC989-070
Brands	Icon
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.320
Crankshaft Stroke	3.760, 4.250
Rod Length	6.135, 6.385
Piston Type	Dome
Compression Height	1.520
Piston Material	2618 Forged
Piston Ring Size	1/16 1/16 3/16
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING

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