KB Hyper Performance Piston Set, KB284.030

KB Hyper Piston - Chevy 489 Rod 6.385 Flat Top +3cc 1V

Centered pin. Spacer ring included. Made from Chevy 454 BB.

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: Flat

Crown (cc): +3cc

Compression Ratio: 96.5-10.0, 105-9.5, 108-9.3, 119-8.6

Top Land: 0.312

Pin Type: Press or Floating

Rod (in): 6.385

Pin Number: 0990x300K

Oversized: Yes

Oversize: .030"

Pin Configuration: Centered

Base Number: KB284

Intake Valve Depth/Diameter: .266/2.310

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

Bore Diameter IN: 4.25

Compression Height MM: 32.3

Bore Diameter MM: 108

Compression Height IN: 1.27

Make for Engine Family: General Motors

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

Pin Diameter (mm): 25.1

Alloy: 390

Stroke (mm): 108

Stroke (in): 4.25

Piston Material: Cast 390 Hypereutectic Alloy

Year Range: -

Lock: PRG110-3

Pin Diameter (in): 0.99

OE Deck Height: 9.8

Crown Type: FLAT TOP 1V

Rod (mm): 162.179