You could weld it i belive. Here is abit of info buddy enjoy... Differences between revision 1 & 2 engines and revision 3 Just a quick list, do not take any of these as gospel: position and orientation of oil filter changed. different internal engine parts, e.g. pistons, con-rods etc. turbo charger changed from Toyota CT26 to CT20B (same intercooler though). boost pressure raised from about 10 to about 13 PSI. power output raised from 220 to 240 BHP. compression ratio slightly lowered. injector size increased from 430cc to 540cc. fuel cut threshold raised from about 12 PSI to about 18