Icon FHR Piston Set, IC9990C.010

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 LS1 type block.

Sold As: Piston Set

Engine Manufacturer: GM

Engine Family: Chevrolet SB V8 Gen III/IV (LS1/LS6 5.7L Block)

Engine Displacement (Liters): 6.2

Engine Displacement (cubic inches): 382

Bore Size (in): 3.898

Bore Size (mm): 99

Piston Head Type: Flat

Crown (cc): +3.2cc

Compression Ratio: 64.5-11.4, 68.4-10.8, 70-10.6

Top Land: 0.265

Pin Type: Press or Floating

Rod (in): 6.125

Compression Height MM: 28.3

Bore Diameter IN: 3.898

Compression Height IN: 1.115

Bore Diameter MM: 99

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

Exhaust Valve Depth/Diameter: .149/1.730

Crown Type: FLAT TOP 2V

Alloy: 4032

Stroke (mm): 101.6

Oversized: Yes

Pin Diameter (mm): 23.5

Oversize: .010"

Year Range: -

Oversizes: STD.005.010

Pin Configuration: Offset

Ring Pack: 1.5mm, 1.5mm, 3.0mm

Pin Diameter (in): 0.927

Rod (mm): 155.6

Intake Valve Depth/Diameter: .196/2.326

OE Deck Height: 9.24

Base Number: IC9990C

Lock: BR8894-1

Stroke (in): 4

Make for Engine Family: General Motors

Piston Material: Forged 4032 Alloy