I have an 01' Polaris Magnum 325. I put a 2" lift, 1.5" wheel spacers, 26" mudlites on itp wheels, gorilla axels(i kept braking oem ones), dynojet jet kit, moose air filter, super trapp exhaust, and a homemade snorkel kit on it. I love this machine but it doesn't quite have the power I need. I'm considering swapping out the stock engine for a 500-600cc one with efi. Will the increased torque/power be too much for the differentials and AWD components to handle? Also any suggestions on a good motor? The stock engine is going to have to be rebuilt soon so I'm trying to find out my best course of action. I'd greatly appreciate any feedback.

 

Rick Ritter, RCR makes a 416 kit for those, call him. 618 644 3211

 

I have the same 4 wheeler, just got done installing a home made snorkel on it, what a pain in the a$$. Did the other improvements make a big difference from the stock power?

 

You might have an easier time putting in a 500HO engine in it. They did have a Magnum 500 for a few years so the components you would need are out there.

 

There is no straight swap for a 325, to go to a 500 or even 425 you would have to put a rad/ fan and a new carb the 31mm will not work with the bigger single cylinders. Going to a 600 twin would be even more work.

By the time your done,buying a used larger ATV would be cheaper and easier. If you can do it your 325 can Handle the power, the 325 is still a full size chassis and shares the same drive line parts as larger Polaris ATVs.

 

Thanks for all the replies. 1 Bad Honda, the added upgrades I made did make a significant difference in the power, but once I put the 26" mudlites on it, the power dropped. So pretty much all the upgrades I did just allowed me to put on larger tires with near the same power I had before I put them on. TLC, I'm finding out more and more that your right on track. I'm having trouble finding parts that won't cost me my first born. I think I'm just going to keep an eye out for a deal on something that will work, or end up buying a new quad and rebuilding my magnum for friends to use. Thanks for all the input. This is a great resource for giving/recieving info and as a place to see what others are doing with their quads.

 

Did you give Rick a call? you'll will be close to a 500 the way I hear it. Doc

 

Yea I gave him a call. Thanks drlang. He said he has a few parts for it, but hes not expecting any more kits in until the Spring. I got a quote for the kit, which isn't bad at all. If I haven't figured out anything by then I'll call him up again.