UEM Pistons

Centered pin. Open chamber hollow dome. Line2Line abradable skirt coating. Upgraded Tredt 4130 G-series wrist pins. Lateral gas ports.

ICON Forged Piston - Chevy BB, 4.600" Bore, -44cc Dome

Icon2618_Ins.pdf

Installation Instruction

Engine Family	Chevrolet BB V8 Aftermarket Block
Year Range	-
Eng. Disp. In.	632
Piston Material	Forged 2618 Alloy
Bore Diameter IN	4.6
Bore Diameter MM	116.8
Stroke (in)	4.75
Stroke (mm)	120.7
Rod (in)	6.7
Rod (mm)	170.18
Compression Height IN	1.12
Compression Height MM	28.4
Ring Pack	.043", 1/16, 3/16
Pin Diameter (in)	.990
Pin Diameter (mm)	25.1

Pin Type	Press or Floating
Pin Configuration	Centered
Pin Number	G9902930185
Lock	PRG110-3
Crown Type	DOME
Crown (cc)	-44cc
Compression Ratio	119-15.8
Intake Valve Depth/diameter	.350/2.536
Exhaust Valve Depth/diameter	2.040
Top Land	.300
Oe Deck Height	10.2
Oversized	Yes
Oversize	.005
Oversizes	STD .005 .010 .025

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