Icon FHR Piston Set, IC9991C.030

ICON Forged Coated Piston - GM LS1, LS6 5.7L with 4.000" stroke.

.030" offset pin. Right and left bank pistons. Fits 15 degree valve angle heads. Use LS2/3 type block.

Sold As: Piston Set

Engine Manufacturer: GM

Engine Family: Chevrolet SB V8 Gen III/IV (LS2/LS3/LSA/LS9/L99 6.0/6.2L Block)

Engine Displacement (Liters): 6

Engine Displacement (cubic inches): 403

Bore Size (in): 4

Bore Size (mm): 101.6

Piston Head Type: Flat

Crown (cc): +3.3cc

Compression Ratio: 64.5-11.9, 68.4-11.4, 70-11.2

Top Land: 0.265

Pin Type: Press or Floating

Lock: BR8894-1

Compression Height IN: 1.115

Exhaust Valve Depth/Diameter: .149/1.730

Pin Configuration: Offset

Pin Diameter (in): 0.927

Make for Engine Family: General Motors

Intake Valve Depth/Diameter: .196/2.326

OE Deck Height: 9.24

Bore Diameter IN: 4

Compression Height MM: 28.3

Ring Pack: 1.5mm, 1.5mm, 3.0mm

Oversize: .030"

Base Number: IC9991C

Alloy: 4032

Piston Material: Forged 4032 Alloy

Oversizes: .005, .010, .020, .030

Rod (in): 6.125

Pin Number: .9270x2.250x.180C-SCR415H

Stroke (in): 4

Stroke (mm): 101.6

Pin Diameter (mm): 23.5

Rod (mm): 155.6

Year Range: -

Crown Type: FLAT TOP 2V

Oversized: Yes