Formerly KB Pistons. Starting with 2618 alloy heat treated to high-strength T-6 specifications gives you the best value for the money. Exclusive V-Rib adds strength without adding weight but allows maximum cooling.

High ductility 2618 alloy
Dual forced pin oiling on most applications
Lateral gas porting on higher compression ratios
Fully machined with deep valve pockets
Second land accumulator grooves
Top land mini groove technology
Diamond finished skirts
Triple wound spiral locks
4.00" bore x 3.00" stroke
5.09" rod length
.912" pin diameter
Use Ring Style C (1/16", 1/16", 3/16")

Item Details

C/R 64cc=8.8, 58cc=9.4, 54cc=9.9
Piston/Pin Weight: 615 g
Rod Length: 5.09"
Flat Top

Charts

474-719 Instructions (PDF)

Ring Style Chart (GIF)

CA Prop 65

CARB warning

Specifications

KEY SPECS
MFG. Part #	Select Size to see
Brand	Icon Pistons
Piston Style	Flat Top w/ 2 valve reliefs
Piston Material	Forged Aluminum

GENERAL
Piston Diameter	Select Size to see
Stroke	3.000"
Connecting Rod Length	5.090"
Piston Weight	484 grams
Piston Ring Style	C
Wrist Pin Diameter	0.9122"
Wrist Pin Weight	131 grams
Compression 58cc =	9.8 : 1
Compression 64cc =	9.1 : 1
GTIN Code	Select Size to see
Sold in Quantity	Set