modded 212cc vs stock 420cc predator motors.. questions

#25
420 cc or not ?

I pulled smaller motor off of my Bad Dog to go big block 420.I knew I'd need bigger torque convertor for one inch crank.. But its going to take more mods. The back of motor is right up against tire.The bolt pattern to mount the motor is different..When you do go to HarborFreight and see the motors side by side,the 420 is HUGE....Im thinking that Im going to grind old motor plate off and just make new one that willlet motor slide forward a little bit... I dont think it will fit on your frame,but I've been wrong before.
 

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#29
I think the 420's abundant torque would be an advantage with such a short race.

Hello 65ShelbyClone, I’m 265 lbs. I want to match a 420 with MEGA MOTO 212 bike. Will it fit ok ? Wanting LowEnd torque, good mid range speed , BUT doesn’t HAVE too fast what kinda TOP SPEED is gonna happen y think? Along the way I’d wanna add MODERATE SPEED tips.
Thank You!
 
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