KB Hyper Performance Piston Kit, KB287KTM.100

1 Set KB287.100/1 Set 4250AM8.100

Centered pin.

Sold As: Kit with Rings

Engine Manufacturer: Chevrolet

Engine Family: Chevrolet BB V8 Mark IV

Engine Displacement (Liters): 7.4

Engine Displacement (cubic inches): 454

Bore Size (in): 4.25

Bore Size (mm): 108

Piston Head Type: Dish

Crown (cc): +18cc

Compression Ratio: 96.5-8.6, 105-8.2, 108-8.0, 119-7.4

Top Land: 0.308

Pin Type: Press or Floating

Oversized: Yes

Crown Type: D-CUP 1V

Make for Engine Family: General Motors

Oversizes: STD, .030, .040, .060, .070, .100

Oversize: 0.1

Bore Diameter MM: 108

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

Compression Height MM: 41.7

Bore Diameter IN: 4.25

Lock: PRG110-3

Rod (in): 6.135

Compression Height IN: 1.645

Year Range: 1970-2000

Grade Type: Performance

Pin Diameter (in): 0.99

Intake Valve Depth/Diameter: .266/2.310

Alloy: 390

Stroke (mm): 101.6

Pin Number: 0990x300K

OE Deck Height: 9.8

Base Number: KB287

Year From: 1970

Stroke (in): 4

Rod (mm): 155.829

Year To: 2000

Pin Configuration: Centered

Pin Diameter (mm): 25.1

Piston Material: Cast 390 Hypereutectic Alloy