Exterior Components› Body Panels and Components

United Engine & Machine Co

CHEVY 489 ROD 6.385 DISH 1V ICON PREMIUM FORGED SINGLE PISTON

$163.28

SKU: U00B SIC947.040

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The ICON IC947.040 is a set of 8 premium forged pistons designed for a 4.290 in. bore and a 4.250 in. stroke engine. These pistons are constructed from a high-strength, heat-treated aluminum alloy and feature a dish style with a single valve relief. They include press-fit or floating wrist pins and retainers, with a pin diameter of 0.990 in. The piston ring thickness is specified as 1/16 in. x 1/16 in. x 3/16 in.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandUnited Engine & Machine Co
Part NumberU00B SIC947.040

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy