Icon FHR Piston Set, IC9991C.STD

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

Piston Head Type: Flat

Crown (cc): +3.3cc

Top Land: 0.265

Pin Type: Press or Floating

Stroke (in): 4

Oversize: STD

Stroke (mm): 101.6

Make for Engine Family: General Motors

Pin Diameter (mm): 23.5

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

OE Deck Height: 9.24

Oversized: No

Bore Diameter IN: 4

Compression Height IN: 1.115

Exhaust Valve Depth/Diameter: .149/1.730

Oversizes: STD.005, .010, .020, .030, .065, .070, .080

Alloy: 4032

Piston Material: Forged 4032 Alloy

Ring Pack: 1.5mm, 1.5mm, 3.0mm

Rod (mm): 155.6

Intake Valve Depth/Diameter: .196/2.326

Pin Configuration: Offset

Rod (in): 6.125

Base Number: IC9991C

Crown Type: FLAT TOP 2V

Pin Diameter (in): 0.927