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Posted

I'm building a motor for a drag bike my plan was to run a 421 cub but my buddy has a 485 cheetah with blocked pv both will be ported 38mm gas cpi oof which would be the better motor and faster thanks

Posted

Go with the cub. Price out pistons for each not to mention the cheetah will need a lot of work to run at it's full potential.

Posted

just build the 421 cub. great power right out of the box and anything you mess up is easily replaced on it. crank, pistons, domes, basically any of it is readily available.

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