Icon Premium Piston Set, IC840.040

ICON Forged Piston - Chry 493 Rod 6.768 Step Dish +23.7cc 2V

Centered pin. Diameter is.9898" (BBC). Use 4250BD8.125. Ring set for the.055" oversize piston. Use 440 block.

Sold As: Piston Set

Engine Manufacturer: Chrysler

Engine Family: Mopar Big Block RB

Engine Displacement (Liters): 8.1

Engine Displacement (cubic inches): 493

Bore Size (in): 4.32

Bore Size (mm): 109.7

Piston Head Type: Dish

Crown (cc): +23.7cc

Compression Ratio: 75-10.3, 78-10.1, 88-9.3

Top Land: 0.35

Pin Type: Press or Floating

Crown Type: STEP DISH 2V

OE Deck Height: 10.725

Exhaust Valve Depth/Diameter: .199/1.880

Pin Diameter (mm): 25.1

Oversizes: .030 .040 .055

Base Number: IC840

Intake Valve Depth/Diameter: .215/2.300

Pin Number: .990x3.000

Compression Height IN: 1.869

Bore Diameter IN: 4.32

Bore Diameter MM: 109.7

Compression Height MM: 47.5

Lock: PRG110-3

Pin Diameter (in): 0.99

Piston Material: Forged 2618 Alloy

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

Stroke (in): 4.15

Make for Engine Family: Mopar

Rod (mm): 171.9072

Alloy: 2618

Pin Configuration: Centered

Oversized: Yes

Oversize: .040"

Stroke (mm): 105.4

Year Range: -

Rod (in): 6.768