KB Hyper Performance Piston Kit, KB357KTM.030

1 Set KB357.030/1 Set 4312AM8.030

Centered pin.

Sold As: Kit with Rings

Engine Manufacturer: Buick

Engine Family: Buick V8

Engine Displacement (Liters): 7.5

Engine Displacement (cubic inches): 455

Bore Size (in): 4.3125

Bore Size (mm): 109.5

Piston Head Type: Dish

Crown (cc): +26.7cc

Compression Ratio: 67-10.1, 75-9.5

Top Land: 0.345

Pin Type: Press or Floating

Year To: 1976

Lock: PRG110-3

Rod (in): 6.6

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

Year From: 1970

Crown Type: STEP DISH 2V

Alloy: 390

Pin Number: 1.000x300K

OE Deck Height: 10.57

Compression Height MM: 51.1

Bore Diameter MM: 109.5

Compression Height IN: 2.01

Bore Diameter IN: 4.3125

Make for Engine Family: General Motors

Oversized: Yes

Piston Material: Cast 390 Hypereutectic Alloy

Grade Type: Performance

Rod (mm): 167.64

Pin Diameter (in): 1

Stroke (mm): 99.1

Exhaust Valve Depth/Diameter: .297/2.360

Year Range: 1970-1976

Pin Configuration: Centered

Pin Diameter (mm): 25.4

Base Number: KB357

Intake Valve Depth/Diameter: .297/2.360

Stroke (in): 3.9

Oversize: .030"

Oversizes: .030, .040, .060