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
