416 to 440 ?? What to expect ??

[bmw500hp]

Right now I am running a 416 with a ross piston. Thinking of going to the 440 at 11:1.

Have a cam similar to 450/451. Stock carb bored by Sparks. FCR on the shelf I could use...t4 slip on..

Wondering what differences in performance to expect..

Mostly woods riding but some track

Any comments appreciated

Thnx

[K_Fulk]

You should have a lil more torque after you bump it up. I think some porting and/or a full pipe would probably benefit you a lil more though. But if your needing a new piston go for it.