if im not mistaken both share same duration of camshaft..check from 4g9x manual...4g91 head just need to be bore a bit then become 4g93 head.i need help here. would it be a good idea to put a 4g93t head onto a 4g91 block
yup...then u can play high rev with forged internal part4g93t block with forged piston would be a better idea den