The reason i asked was the latest 1J has single turbos and
vvt-i and in a ra28 would bloody fly!!!! yes in the end of the a serious all out build up a 2J might be better but a 1J even the old twin turbo version would go like stink. By the way i don't know if the heads are different. have a search and look for a 1J in a ra2X there is alink to pics and bonnet clearance look close. a 2J would fit i don't think.