KB Hyper Performance Piston Kit, KB290KTM.040

1 Set KB290.040/1 Set 4000AM8.040

Centered pin.

Sold As: Kit with Rings

Engine Manufacturer: Chrysler

Engine Family: Mopar Hemi (early)

Engine Displacement (Liters): 6.4

Engine Displacement (cubic inches): 392

Bore Size (in): 4

Bore Size (mm): 101.6

Piston Head Type: Dome

Crown (cc): -22cc

Compression Ratio: 101-10.3, 104-10.0, 110-9.5

Top Land: 0.379

Pin Type: Press or Floating

Grade Type: Performance

Oversized: Yes

Pin Diameter (mm): 25

Intake Valve Depth/Diameter: .273/2.250

Year Range: 1957-2018

Piston Material: Cast 390 Hypereutectic Alloy

Bore Diameter IN: 4

Compression Height MM: 49.3

Compression Height IN: 1.94

Make for Engine Family: Mopar

Pin Configuration: Centered

Stroke (mm): 99.1

Rod (in): 6.958

Crown Type: .160" HEMI DOME 2V

Stroke (in): 3.9

Year From: 1957

Oversize: .040"

Year To: 2018

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

Rod (mm): 176.7332

Exhaust Valve Depth/Diameter: .273/2.250

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

Lock: PRH107-3

OE Deck Height: 10.87

Alloy: 390

Pin Number: 0984x300K

Base Number: KB290

Pin Diameter (in): 0.984