form what i understand…same mounts, bolt on the rb26 head, trnasfer all sensors to the rb30 block, clutch and flywheel are same i believe, the only thing im not to sure about is what dohc timing belt to use because the rb30 is sohc…with internals over a 1000 wheel is no problem…ill look into it and let you know for sure by the end of today for yea