It shared the same Fiber Reinforced Metal ( FRM ) cylinder wall liners with the H22 .
The H23 was an increased - stroke , non-VTEC version of the H22 , used in Japan , North America , and Europe .
H23 shared the same Fiber Reinforced Metal ( FRM ) cylinder wall liners with the H22 .
The H23 was an increased - stroke , non-VTEC version of the H22 , used in Japan , North America , and Europe .