Exterior Components› Body Panels and Components

United Engine & Machine Co

SINGLE CAST PISTON 4.9L GM

$77.00

SKU: U00B S1531.030

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Description

The Silv-O-Lite S1531.STD is a cast aluminum piston designed for a 4.000 in. bore. It features a dish-style piston head with no valve reliefs and a +13.50cc volume. The piston uses a press-fit wrist pin style with a 0.927 in. diameter.

This piston is intended for stock stroke engines and comes with a wrist pin included. It is sold individually and features 5/64 in. x 5/64 in. x 3/16 in. ring grooves. The piston has a compression height of 1.570 in. and a note indicating an elliptical recess of 0.290 inch deep.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B S1531.030

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.

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