2001 mercury 200 efi downgrade to 2001 mercury 175?

[joshsmith75]

Hey everyone,
I have a 1999 ranger 91 with a 200 mercury efi that I bought with a blown motor. I replaced it with a "rebuilt" motor that is a 2001 mercury efi. It threw a rod though the block less than 6 months after the purchase. (Not happy). I recently found a 2001 mercury 175 efi that looks like a good deal.
I have a couple of questions and I'm hoping one of you guys that knows more about these things than I do may be able to offer some advice.
How much power loss (speed) will I be looking at by downgrading?
Can I use the parts from my blown motors to turn the 175 into a 200?
Is it worth the effort?
Thanks, Josh

[EuropeanAM]

I'll move your post to the 2.5L forum for you.

Serial Numbers for the engines in question would help.

[JOE54]

porting in block of 175 is different for 200 as well as ECU and few other small parts so no you cant bolt on 200 parts and have a 200 from a 175 sorry , many will say you can but you will not have a 200

[David L]

You'd be way better off finding a "good Deal" on a used 200 vs modifying this 175.
Plan B if you end up with this 175. Run it as is, go fishing and be content.

[EuropeanAM]

Now if a 200 Project is what you're looking for... hit me up by PM. I've got a complete one here that would be a viable candidate.

[joshsmith75]

Thank you very much guys. Sounds like maybe not exactly the news I was hoping for. I'm at a point now where I just want to go fish.
I'm not a professional mechanic in any kind of way but I thought I'd ask. Now I have two blown motors to try to sell I guess.
Thanks again!!!