Icon Premium Piston Set, IC689.030

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

Pin Diameter (mm): 25.1

Oversize: .030"

Compression Height IN: 1.318

Bore Diameter MM: 108

Compression Height MM: 33.5

Oversized: Yes

Lock: PRG110-3

Rod (mm): 171.704

Crown Type: FLAT TOP

Alloy: 2618

Piston Material: Forged 2618 Alloy

Bore Diameter IN: 4.25

Stroke (in): 3.75

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

Base Number: IC689

Year Range: -

Exhaust Valve Depth/Diameter: .199/1.880

Intake Valve Depth/Diameter: .218/2.300

Pin Configuration: Centered

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

Stroke (mm): 95.3

Rod (in): 6.76

OE Deck Height: 9.98

Make for Engine Family: Mopar

Pin Diameter (in): 0.99

Pin Number: .990x300K