Icon Premium Piston Kit, IC689KTD.060

1 Set IC689.060/1 Set 4250BD8.065

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: Kit with Rings

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

Crown (cc): +4.5cc

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

Top Land: 0.25

Pin Type: Press or Floating

Stroke (in): 3.75

Oversize: .060"

Intake Valve Depth/Diameter: .218/2.300

OE Deck Height: 9.98

Stroke (mm): 95.3

Pin Configuration: Centered

Crown Type: FLAT TOP

Rod (mm): 171.704

Year Range: -

Bore Diameter MM: 108

Compression Height MM: 33.5

Bore Diameter IN: 4.25

Compression Height IN: 1.318

Exhaust Valve Depth/Diameter: .199/1.880

Piston Material: Forged 2618 Alloy

Pin Diameter (mm): 25.1

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

Oversized: Yes

Base Number: IC689

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

Lock: PRG110-3

Pin Diameter (in): 0.99

Grade Type: Performance

Rod (in): 6.76

Alloy: 2618

Pin Number: .990x300K

Make for Engine Family: Mopar