KB Hyper Performance Piston Kit, KB172KTM.030

1 Set KB172.030/1 Set 4125AM8.030

Centered pin. Made with Chevy 400 block and 350 crank.

Sold As: Kit with Rings

Engine Manufacturer: Chevrolet

Engine Family: Chevrolet SB V8 Gen I

Engine Displacement (Liters): 6.2

Engine Displacement (cubic inches): 377

Bore Size (in): 4.125

Bore Size (mm): 104.8

Crown (cc): +7cc

Compression Ratio: 58-11.5, 62-10.9, 64-10.7, 76-9.4

Top Land: 0.275

Pin Type: Press or Floating

OE Deck Height: 9.025

Pin Number: 0927x300K

Year Range: 1973-2018

Pin Diameter (mm): 23.5

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

Alloy: 390

Base Number: KB172

Grade Type: Performance

Crown Type: FLAT TOP 2V

Bore Diameter IN: 4.125

Bore Diameter MM: 104.8

Compression Height IN: 1.561

Compression Height MM: 39.6

Stroke (mm): 88.4

Rod (mm): 144.78

Pin Diameter (in): 0.927

Year To: 2018

Intake Valve Depth/Diameter: .280/2.168

Year From: 1973

Pin Configuration: Centered

Exhaust Valve Depth/Diameter: .280/2.168

Make for Engine Family: General Motors

Rod (in): 5.7

Oversized: Yes

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

Piston Material: Cast 390 Hypereutectic Alloy

Oversize: .030"

Lock: PRJ100-3

Stroke (in): 3.48