The Honda H engine was Honda's high-performance engine family from the 1990s and early 2000s. It is largely derived from the Honda F engine with which it shares many design features. Like Honda's other 4-cylinder families of the 80s and 90s, it was replaced by the Honda K engine. It has also enjoyed some success as a racing engine, forming the basis of Honda's Touring car racing engines for many years, and being installed in lightweight chassis (such as the Honda CRX) for use in drag racing. The F20B, though technically coded part of the F-series family of engines, was basically a destroked version of the H22A. It was developed for Honda to be able to enter into the 2-liter class in racing.
The H22 debuted in the U.S. in 1993 as the H22A1 for use in the Honda Prelude VTEC. Since then, versions of the H22 would become the Prelude's signature high-performance engine worldwide until the end of Prelude production in 2001. Variations were also used in a few Accords in Japan and Europe. In 1994, Honda of Europe used the H22A cylinder head and the H22A engine block as Formula 3 engine which was destroke H22A engine from 2.2 liters to 2.0 liters(F3-2000cc)to compete in the European F3 series then it was used by Mugen Motorsports as F20B from 1997-2001. In 1995-1997,Honda of Europe used the same H22A based F3 engine in the British Touring Car Championship(BTCC)Honda Accord. Also,in 1996-1997 Honda of Japan used the same H22A based F3 engine in the Japan Touring Car Championship(JTCC)Honda Accord and won the JTCC for both years. Honda of Europe hired Neil Brown Engineering of England to convert the H22A engine to F3 engine which would be later used in BTCC and JTCC. (www.nbe.co.uk/super_touring.html)
Specifications"
H22A
H22A1
H22A2
H22A3
H22A4
H22A5
H22A7
H22A8
H22Z1
The H23 was an increased-stroke, non-VTEC version of the H22, used in Japan, North America, and Europe. It shared the same Fiber Reinforced Metal (FRM) cylinder wall liners with the H22.
Specifications
H23A
H23A1
H23A2
H23A3
H23A DOHC VTEC
In 1998, Honda of Japan produced a rare DOHC VTEC version of the H23A engine for use in Japan only. It has been factory modified with an internal oil passage in the H23A block to operate the VTEC solenoid in the H22A head. Having the same horsepower rating as the H22A engine but it has a lower redline because it has a longer stroke than H22A. H23A DOHC VTEC has 87mm x 95mm (bore and stroke)and the H22A DOHC VTEC has 87mm x 90.7mm (bore and stroke). The H23A DOHC VTEC Engine is largest displacement in the H Series engines with a compression ratio of 10.6:1.