Wiseco RED Series Ford Small Block 4.000in Bore 1.090in CH -5.00 CC Piston Set

If you're building a high-performance Ford Small Block engine for racing, like drag or circle track, these Wiseco RED Series pistons are built to handle the stress. They're forged from 2618 aluminum, a material chosen for its tensile strength, which is exactly what you need when you're pushing serious power, especially with forced induction or other power adders.

Wiseco's Race Engineered Design (RED) process means these pistons are specifically optimized for strength and weight. You'll find horizontal slot oiling in the pin bores, which is a smart touch to keep the wrist pin and connecting rod small end well-lubricated, crucial for keeping things running smoothly under high loads. The skirt coating, called ArmorGlide, helps cut down on friction and noise, and it also reduces wear on the piston skirt and cylinder wall. Plus, each set comes with premium rings, so you don't have to hunt for those separately, and an accumulator groove is included to help maintain a consistent ring seal for steady power delivery.

These pistons are made in the USA and are designed with dedicated forgings to maximize their strength-to-weight ratio. Keep in mind that these are not CARB approved and cannot be shipped to California. For a serious build, these pistons offer a well-built foundation.