Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

5703 CHRYSLER 318 ROD 6.123 SOLID DOME 4.9CC 2V ICON PREMIUM FORGED PISTON SET

$113.58

SKU: U00B IC845.030

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

Easy — 1–2 hours

Description

The United Engine & Machine Co. IC845.030 is a set of forged pistons designed for Mopar Small Block LA engines. These pistons are constructed from a 2618 alloy, feature a dome style, and include a skirt coating. They are designed for high compression ratios, with specific values of 11.5:1, 10.7:1, and 10.0:1 depending on the cylinder head volume.

With a bore of 3.940 inches and a stroke of 3.310 inches, these pistons are engineered for demanding performance applications. The dome volume is 4.9cc, and the rod length is 6.123 inches.

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 IC845.030

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