Honda Civic Si Piston Set - Wiseco - Professional Series - '93-'01. A factory-focused, race-capable piston kit engineered for B16A-equipped Civic Si engines, supplied as a set of four pistons ready for high-demand builds.

Wiseco Professional Series pistons are forged from 2618 aluminum and fully machined in the USA for consistent strength and dimensional control. This kit is built for heavy to severe duty performance applications and includes premium rings and features intended to improve durability, reduce friction, and resist detonation in high-output or track-oriented engines. ArmorGlide skirt coating helps reduce scuffing and noise, while precision ring grooves and anti-detonation groove work together to maintain ring seal under stress. The pistons include provisions for forced pin oiling and are supplied to match an 81.25 mm bore for B16A swaps and rebuilds.

Features

• Forged 2618 aluminum construction, machined in the USA
• ArmorGlide skirt coating for seizure resistance and reduced friction
• Precision ring grooves and anti-detonation groove
• Premium piston rings included; set of 4 for B16A applications (81.25 mm bore)
• Designed for heavy to severe duty race and high-output street builds

If you have questions or want help confirming fitment for your build, call us directly — we’re happy to assist: 512-982-9393 (TX) or 562-981-6800 (CA). We have two locations offering installation and customization services in Austin, Texas and the Los Angeles, California area.

If you’re planning to purchase multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov