KB Hyper Performance Piston Kit, KB203KTM.060

1 Set KB203.060/1 Set 4250AM8.060

Centered pin. CC=closed chamber head.

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: Dome

Crown (cc): -12cc

Compression Ratio: 96.5-11.0, 105-10.2, 108-9.9, 119-9.1

Top Land: 0.319

Pin Type: Press or Floating

Stroke (mm): 101.6

OE Deck Height: 9.8

Pin Diameter (mm): 25.1

Year Range: 1970-2000

Rod (mm): 155.829

Compression Height IN: 1.645

Alloy: 390

Intake Valve Depth/Diameter: .266/2.310

Base Number: KB203

Bore Diameter IN: 4.25

Bore Diameter MM: 108

Compression Height MM: 41.7

Crown Type: .113" CC SOLID DOME 1V

Pin Number: 0990x300K

Year To: 2000

Pin Configuration: Centered

Oversize: .060"

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

Oversized: Yes

Pin Diameter (in): 0.99

Stroke (in): 4

Lock: PRG110-3

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

Piston Material: Cast 390 Hypereutectic Alloy

Year From: 1970

Rod (in): 6.135

Grade Type: Performance

Make for Engine Family: General Motors