I doubt it because we've already seen mentions of CZ-2F/H using the 3.35 m core stage with YF-100 engines. Also, if the payload mass is not misquoted I can't imagine a 3.35 m vehicle with such a low capacity.
Only one YF-100 engine in the the 3.35 m core stage of the small launch vehicle, the upper stage is 2.25 m diameter with a 15 tonne thrust YF-115 engine. the payload mass is appropriate with thrust。
CZ-2F/H using the 3.35 m core stage with TWO YF-100 engines，while four boosters with ONE YF-100 engine each others, the rocket lift off using six YF-100 engines.