cylinder head question

[fishfinder221]

I have a '92 rude xp and a '87 225. I took the carbs off of the 225 and put them on the 200 due to the 200 has 40 hours on a new rebuild. do i have to change the cylinder heads also to make the 200 a 225. the 200 is also bored .030 over and is a big bore engine. all parts are compatable.

 

[93bronco]

Re: cylinder head question

dont you hate it when someone doesnt respond!!!!<br /><br />anyway this is what i found out while searching for info on my 1985 140 carbs and my 1988 120/140 carbs. though they look similar the 1985s have a smaller throat than the 1988s. i attributted this to the fact that 1985 to 1987 had a smaller bore (3.50) than the 1988 to 1994 (3.685). which also applies to your motors. the 120 to 225 loop vees share the same pistons.<br />you probably want to look at that swap again. you will have to keep the carbs and throttle bodies together. as they are different between those years. <1992 200 & 1987 225><br />you might have actually lost some performance because the jetting is different too. just trying to help