KB Hyper Performance Piston Set, KB399.020

KB Hyper Piston - Chry 318 Rod 6.123 Solid Dome -6cc 2V

Centered pin. Piston is.010" above a 9.578" deck.

Sold As: Piston Set

Engine Manufacturer: Chrysler

Engine Family: Mopar Small Block LA

Engine Displacement (Liters): 5.2

Engine Displacement (cubic inches): 318

Bore Size (in): 3.91

Bore Size (mm): 99.3

Piston Head Type: Dome

Crown (cc): -6cc

Compression Ratio: 57-12.2, 60-11.7, 64-11.0, 68-10.4

Top Land: 0.275

Pin Type: Press or Floating

Alloy: 390

Lock: PRH107-3

OE Deck Height: 9.578

Stroke (mm): 84.1

Year Range: 1957-2003

Base Number: KB399

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

Make for Engine Family: Mopar

Year To: 2003

Compression Height IN: 1.81

Bore Diameter MM: 99.3

Compression Height MM: 46

Bore Diameter IN: 3.91

Intake Valve Depth/Diameter: .286/2.200

Oversize: .020"

Rod (in): 6.123

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

Oversized: Yes

Crown Type: .200" SOLID DOME 2V

Pin Number: 0984x300K

Pin Diameter (in): 0.984

Pin Configuration: Centered

Pin Diameter (mm): 25

Rod (mm): 155.5242

Year From: 1957

Stroke (in): 3.31

Exhaust Valve Depth/Diameter: .286/2.200

Piston Material: Cast 390 Hypereutectic Alloy