KB Hyper Performance Piston Kit, KB418KTM.040

1 Set KB418.040/1 Set 4165AM8.040

Centered pin. Uses factory 1.00" wrist pin and press pin rod.

Sold As: Kit with Rings

Engine Manufacturer: AMC/Jeep

Engine Family: AMC V8

Engine Displacement (Liters): 6.4

Engine Displacement (cubic inches): 390

Bore Size (in): 4.165

Bore Size (mm): 105.8

Piston Head Type: Dish

Crown (cc): +28.0cc

Compression Ratio: 51-10.2, 58-9.5

Top Land: 0.297

Pin Type: Press or Floating

Intake Valve Depth/Diameter: .273/2.120

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

Make for Engine Family: AMC

Pin Number: 1000x300K

Exhaust Valve Depth/Diameter: .273/2.120

Grade Type: Performance

Alloy: 390

Base Number: KB418

Crown Type: STEP DISH 2V

OE Deck Height: 9.175, 9.208

Bore Diameter IN: 4.165

Compression Height MM: 39.6

Bore Diameter MM: 105.8

Compression Height IN: 1.56

Rod (in): 5.858

Year To: 1970

Pin Configuration: Centered

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

Year From: 1968

Oversize: .040"

Lock: PRJ100-3

Stroke (in): 3.574

Piston Material: Cast 390 Hypereutectic Alloy

Year Range: 1968-1970

Rod (mm): 148.7932

Pin Diameter (in): 1

Stroke (mm): 90.8

Oversized: Yes

Pin Diameter (mm): 25.4