yah... 4g61 no need change mounting... but its an old engine... so reliability wise, u think lo.... 4g63 i guess no need as well arr, coz from the same 4g6X family engine...
but 4g63 quite hard to register as well la... coz its a 2.0L engine... need to mod ur car brakes, suspension and strengthen chassis only could pass....
bro zan, i heard my friend say his 4g91 SOHC has more torque than 4g92 DOHC??...