Icon Premium Piston Set, IC689.040

ICON Forged - Chry 431 Rod 6.760 Flat Top +4.5cc or Rod 6.535 Flat Top +4.5cc

Centered pin. Fits Indy, Edelbrock, 440 Source and OE heads. No STD size. Designed for 383" block with 3.750" stroke and 6.760" rod. Ratios calculated with block machined to.000" deck clearance. .990" wrist pin.

Sold As: Piston Set

Engine Manufacturer: Chrysler

Engine Family: Mopar Big Block B

Engine Displacement (Liters): 7.1

Engine Displacement (cubic inches): 431

Bore Size (in): 4.25

Bore Size (mm): 108

Piston Head Type: Flat

Crown (cc): +4.5cc

Compression Ratio: 75-12.3L, 80-11.7, 88-10.8

Top Land: 0.25

Pin Type: Press or Floating

Rod (in): 6.76

OE Deck Height: 9.98

Stroke (in): 3.75

Bore Diameter MM: 108

Oversize: .040"

Bore Diameter IN: 4.25

Compression Height IN: 1.318

Compression Height MM: 33.5

Rod (mm): 171.704

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

Pin Number: .990x300K

Alloy: 2618

Piston Material: Forged 2618 Alloy

Pin Diameter (in): 0.99

Stroke (mm): 95.3

Pin Configuration: Centered

Oversized: Yes

Year Range: -

Lock: PRG110-3

Base Number: IC689

Make for Engine Family: Mopar

Crown Type: FLAT TOP

Exhaust Valve Depth/Diameter: .199/1.880

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

Pin Diameter (mm): 25.1

Intake Valve Depth/Diameter: .218/2.300