Honda H22A Engine Specs

The Honda H22A is a 2.2-liter naturally aspirated inline-four petrol engine produced from 1991 to 2002 as the flagship of Honda's H-series, best known for powering the higher-performance Prelude Si/SiR/Type S models and the Honda/Acura Accord Euro R (CL1). Positioned above the smaller B- and F-series engines of the same era, the H22A combined a larger displacement with Honda's DOHC VTEC system to deliver strong mid-range torque alongside a genuinely high-revving top end, resulting in one of the most complete and best-loved naturally aspirated Honda engines of the 1990s.

With a compression ratio of 10.6:1 and 16-valve DOHC VTEC architecture, the H22A produces around 200hp and 221Nm of torque, figures that don't sound exceptional today but which, combined with the engine's eagerness to rev toward 7,600rpm-plus VTEC engagement and beyond, made it one of the most engaging four-cylinder engines available at the time. Unlike some of Honda's smaller, more single-mindedly high-revving engines, the H22A retains usable low-end torque, making it noticeably easier to live with day to day while still rewarding enthusiastic driving with genuine top-end excitement.

Long-term ownership of the H22A does require attention to a handful of well-known items. Like other Honda VTEC engines of the era, the VTEC solenoid's oil screens can become clogged with age or poor oil quality, disrupting proper VTEC engagement; regular oil changes with a quality oil are the single most effective preventive measure. The timing belt is critical, as this is an interference engine, and must be replaced on schedule along with the water pump to avoid catastrophic valve damage if the belt fails. Oil consumption can increase on high-mileage examples, often linked to PCV system wear or valve guide wear from years of high-RPM use. As these engines age - most are now well over two decades old - buyers should also expect the usual issues of an aging vehicle: deteriorating wiring, vacuum hoses, and rubber components that are easy to overlook but add up. Because the H22A now commands genuine enthusiast and collector interest thanks to its association with the Prelude and Accord Type R/Euro R, good, unmodified examples are becoming harder to find and increasingly expensive, so a thorough compression test and visual inspection before purchase is strongly recommended.