Icon Premium Piston Kit, IC993KTD.040

1 Set IC993.040/1 Set 4250BD8.040

Hollow dome. Centered pin. Will fit AFR, RHS, Trick Flow, World, Edelbrock, Brodix, Dart and OE Chevy open chamber heads that are 118cc's or larger. Always check piston to chamber and valves to assure you have adequate operating clearance.

Sold As: Kit with Rings

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): -38cc

Compression Ratio: 119-12.0

Top Land: 0.34

Pin Type: Press or Floating

Oversize: .040"

Oversized: Yes

Intake Valve Depth/Diameter: .275/2.420

Grade Type: Performance

Oversizes: STD, .030, .040, .060, .070, .100.125

Stroke (in): 4.25

Compression Height MM: 32.3

Bore Diameter IN: 4.25

Compression Height IN: 1.27

Bore Diameter MM: 108

Crown Type: .425" HOLLOW DOME 1V

OE Deck Height: 9.8

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

Base Number: IC993

Lock: PRG110-3

Pin Configuration: Centered

Pin Number: .990x2.750

Pin Diameter (mm): 25.1

Year Range: -

Make for Engine Family: General Motors

Rod (in): 6.385

Pin Diameter (in): 0.99

Rod (mm): 162.179

Alloy: 2618

Stroke (mm): 108

Piston Material: Forged 2618 Alloy