Hi all, I have an opportunity to possibly trade my Indy 500 for a 2001 pro x 440 Fan. I was wondering what people thought about the pro x. Any thoughts would be great!
Yep the more research I do the more I’m thinking I won’t do the trade. I might try and sell the Indy to get a edge 600 with a little more power.Nope not a chance those ProX 440s had a lot of issue hence why they only lasted a couple years vs that Indy 500 which are rock solid even in the Liberty Engines. Those 440 ProX blew up quite a bit and had a lot of cylinder problems. Ask BearAk about it his family found out as well about that.
Yeah doesn’t sound like I’ll be getting a pro x. Maybe an edge 600 though!Yeah, some design mistakes on the crankcase and cylinder match up. Very thin wall where they meet up so not much meat to hold the gasket in there. It blew out pretty easy. Fun sled when it runs. Used in a lot of 440 class races, but those folks that did, rebuilt them after every race day. Sold my son's motor to a racer. The chassis got re-purposed.
Oh, and Polaris doesn't sell the piston for it anymore. Had to match up an aftermarket piston and even grind down the skirt just a bit to make it work.