KB Hyper Performance Piston Kit, KB399KTM.020

1 Set KB399.020/1 Set 3910AM8.020

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

Sold As: Kit with Rings

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

Pin Diameter (in): 0.984

Year From: 1957

Rod (in): 6.123

OE Deck Height: 9.578

Rod (mm): 155.5242

Make for Engine Family: Mopar

Stroke (in): 3.31

Piston Material: Cast 390 Hypereutectic Alloy

Bore Diameter MM: 99.3

Bore Diameter IN: 3.91

Compression Height IN: 1.81

Compression Height MM: 46

Pin Number: 0984x300K

Stroke (mm): 84.1

Base Number: KB399

Pin Diameter (mm): 25

Lock: PRH107-3

Exhaust Valve Depth/Diameter: .286/2.200

Crown Type: .200" SOLID DOME 2V

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

Oversized: Yes

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

Intake Valve Depth/Diameter: .286/2.200

Year To: 2003

Alloy: 390

Grade Type: Performance

Pin Configuration: Centered

Year Range: 1957-2003

Oversize: .020"