KB Hyper Performance Piston Kit, KB400KTM.STD

1 Set KB400.STD/1 Set 4250AM8.STD

Centered pin.

Sold As: Kit with Rings

Engine Manufacturer: Chrysler

Engine Family: Mopar Big Block B

Engine Displacement (Liters): 6.3

Engine Displacement (cubic inches): 383

Bore Size (in): 4.25

Bore Size (mm): 108

Piston Head Type: Dome

Compression Ratio: 72-10.7, 80-9.8, 84-9.4, 88-9.1

Top Land: 0.275

Pin Type: Press or Floating

Lock: PRF116-3

Intake Valve Depth/Diameter: .265/2.360

Stroke (mm): 85.9

Exhaust Valve Depth/Diameter: .265/2.360

Stroke (in): 3.38

Crown Type: .220" SOLID DOME 2V

Piston Material: Cast 390 Hypereutectic Alloy

Rod (mm): 161.4932

Oversize: STD

Oversizes: STD, .020, .030, .040, .060

Bore Diameter MM: 108

Bore Diameter IN: 4.25

Compression Height IN: 1.908

Compression Height MM: 48.5

OE Deck Height: 9.98

Year Range: 1931-1973

Oversized: No

Year From: 1931

Ring Pack: 5/64, 5/64, 3/16

Pin Diameter (mm): 27.8

Pin Diameter (in): 1.094

Pin Configuration: Centered

Pin Number: 1.094x300K

Base Number: KB400

Rod (in): 6.358

Grade Type: Performance

Make for Engine Family: Mopar

Year To: 1973

Alloy: 390