KB Hyper Performance Piston Set, KB284.070

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

Compression Height MM: 32.3

Bore Diameter IN: 4.25

Alloy: 390

Stroke (mm): 108

Rod (in): 6.385

Oversized: Yes

Compression Height IN: 1.27

Year Range: -

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

Pin Configuration: Centered

Bore Diameter MM: 108

Make for Engine Family: General Motors

Intake Valve Depth/Diameter: .266/2.310

Rod (mm): 162.179

Pin Diameter (mm): 25.1

Pin Number: 0990x300K

OE Deck Height: 9.8

Pin Diameter (in): 0.99

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

Lock: PRG110-3

Stroke (in): 4.25

Base Number: KB284

Oversize: .070"

Piston Material: Cast 390 Hypereutectic Alloy

Crown Type: FLAT TOP 1V