KB Hyper Performance Piston Set, KB398.070

KB Hyper Piston - Chevy 489 Rod 6.385 cc Solid Dome -17cc 1V

Centered pin. Spacer ring included. Made from Chevy 454 BB. CC=closed chamber head.

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): -17cc

Compression Ratio: 96.5-12.3, 105-11.3, 108-11.0, 119-10.0

Top Land: 0.312

Pin Type: Press or Floating

Piston Material: Cast 390 Hypereutectic Alloy

Make for Engine Family: General Motors

Lock: PRG110-3

Oversize: .070"

Pin Diameter (in): 0.99

OE Deck Height: 9.8

Bore Diameter MM: 108

Compression Height MM: 32.3

Bore Diameter IN: 4.25

Compression Height IN: 1.27

Crown Type: .180" CC SOLID DOME 1V

Rod (mm): 162.179

Pin Number: 0990x300K

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

Rod (in): 6.385

Base Number: KB398

Oversized: Yes

Stroke (mm): 108

Pin Diameter (mm): 25.1

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

Year Range: -

Alloy: 390

Intake Valve Depth/Diameter: .266/2.310

Pin Configuration: Centered

Stroke (in): 4.25