Icon Premium Piston Set, IC789.030

ICON Forged Piston - Chevy 489 Rod 6.385 cc Hollow Dome -20cc 1V

Closed chamber design. Centered pin. Edelbrock and OE heads. Does not fit Mark 6 heads.

Sold As: Piston Set

Engine Manufacturer: Chevrolet

Engine Family: Chevrolet BB V8 Mark IV

Engine Displacement (Liters): 8

Engine Displacement (cubic inches): 489

Bore Size (in): 4.25

Bore Size (mm): 108

Piston Head Type: Dome

Crown (cc): -20cc

Compression Ratio: 96.5-12.7, 115-10.6, 119-10.2

Top Land: 0.336

Pin Type: Press or Floating

Lock: PRG110-3

Rod (mm): 162.179

Stroke (in): 4.25

Oversizes: STD, .030, .040, .060, .070, .100

Bore Diameter MM: 108

Compression Height MM: 32.3

Pin Diameter (in): 0.99

Intake Valve Depth/Diameter: .285/2.300

Bore Diameter IN: 4.25

Compression Height IN: 1.27

Year Range: -

Pin Configuration: Centered

Piston Material: Forged 2618 Alloy

Base Number: IC789

Ring Pack: 1/16, 1/16, 3/16

Crown Type: .210" HOLLOW DOME 1V

Stroke (mm): 108

OE Deck Height: 9.8

Alloy: 2618

Oversized: Yes

Rod (in): 6.385

Make for Engine Family: General Motors

Pin Diameter (mm): 25.1

Pin Number: .990x2.750

Oversize: .030"