Vtec or non-Vtec ?

[YLD-H22]

JDM 4th gen is Si Vtec h22a

Aussie Vtir is h22a1

I knew that lol but from this engine number 'h22a1154036,' are we looking at a h22a1 or h22a ?

EDIT: Sorry the title should say 'Which Vtec?' since there both Vtec ^^