KB Hyper Performance Piston Kit, KB121KTM.030

1 Set KB121.030/1 Set 4000BM8.030

Centered pin. Made with Chevy 350 SB.

Sold As: Kit with Rings

Engine Manufacturer: Chevrolet

Engine Family: Chevrolet SB V8 Gen I

Engine Displacement (Liters): 6.3

Engine Displacement (cubic inches): 383

Bore Size (in): 4

Bore Size (mm): 101.6

Piston Head Type: Dish

Crown (cc): +28cc

Compression Ratio: 58-9.3, 62-9.0, 64-8.8, 76-8.0

Top Land: 0.275

Pin Type: Press or Floating

OE Deck Height: 9.025

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

Stroke (in): 3.75

Intake Valve Depth/Diameter: .280/2.168

Bore Diameter IN: 4

Lock: PRJ100-3

Oversize: .030"

Stroke (mm): 95.3

Crown Type: D-CUP 2V

Compression Height MM: 36.4

Compression Height IN: 1.433

Base Number: KB121

Year Range: -

Pin Diameter (mm): 23.5

Alloy: 390

Exhaust Valve Depth/Diameter: .280/2.168

Pin Configuration: Centered

Rod (in): 5.7

Grade Type: Performance

Rod (mm): 144.78

Make for Engine Family: General Motors

Pin Diameter (in): 0.927

Pin Number: 0927x300K

Oversized: Yes

Ring Pack: 1/16, 1/16, 3/16

Piston Material: Cast 390 Hypereutectic Alloy