KB Hyper Performance Piston Set, KB402.040

KB Hyper - Ford 521 Rod 6.800 D-Cup +20.5cc 1V;545 Rod 6.7 D-Cup +20.5cc 1V

Centered pin. Spacer ring included. Made from Ford 460 block. Check rod side clearance.

Sold As: Piston Set

Engine Manufacturer: Ford

Engine Family: Ford BB V8 429/460

Engine Displacement (Liters): 8.5

Engine Displacement (cubic inches): 521

Bore Size (in): 4.36

Bore Size (mm): 110.7

Piston Head Type: Dish

Crown (cc): +20.5cc

Compression Ratio: 76-11.0, 82-10.5, 91-9.8, 97-9.4

Top Land: 0.3

Pin Type: Press or Floating

Alloy: 390

Compression Height IN: 1.35

Pin Number: 0990x300K

Crown Type: STEP DISH 1V

Oversizes: .030, .040, .060

Oversize: .040"

Rod (in): 6.8

Bore Diameter MM: 110.7

Compression Height MM: 34.3

Bore Diameter IN: 4.36

OE Deck Height: 10.32

Lock: PRG110-3

Oversized: Yes

Piston Material: Cast 390 Hypereutectic Alloy

Pin Diameter (in): 0.99

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

Stroke (in): 4.3

Year Range: -

Pin Configuration: Centered

Base Number: KB402

Make for Engine Family: Ford

Rod (mm): 172.72

Intake Valve Depth/Diameter: .236/2.370

Stroke (mm): 109.2

Pin Diameter (mm): 25.1