KB Hyper Performance Piston Kit, KB128KTM.STD

1 Set KB128.STD/1 Set 4125BM8.STD

Centered pin. Spacer ring included.

Sold As: Kit with Rings

Engine Manufacturer: Chevrolet

Engine Family: Chevrolet SB V8 Gen I

Engine Displacement (Liters): 6.6

Engine Displacement (cubic inches): 400

Bore Size (in): 4.125

Bore Size (mm): 104.8

Crown (cc): +7cc

Compression Ratio: 58-12.3, 62-11.7, 64-11.64, 76-10.0

Top Land: 0.275

Pin Type: Press or Floating

Pin Diameter (mm): 23.5

Intake Valve Depth/Diameter: .280/2.168

Piston Material: Cast 390 Hypereutectic Alloy

Grade Type: Performance

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

Oversize: STD

Year Range: 1970-2018

Rod (mm): 152.4

Bore Diameter MM: 104.8

Bore Diameter IN: 4.125

Compression Height MM: 28.7

Compression Height IN: 1.13

Pin Configuration: Centered

Pin Number: 0927x300K

Crown Type: FLAT TOP 2V

OE Deck Height: 9.025

Rod (in): 6

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

Base Number: KB128

Alloy: 390

Stroke (mm): 95.3

Exhaust Valve Depth/Diameter: .280/2.168

Oversized: No

Pin Diameter (in): 0.927

Make for Engine Family: General Motors

Year From: 1970

Stroke (in): 3.75

Year To: 2018

Lock: PRJ100-3