CB650 Camshaft vs CB550 Camshaft Usage

paulschell

New Member
Hey guys,

How critical/important is it that you use a CB650 camshaft on a CB550 engine (after it's been bored to 61.5mm)?

I've read of alot of guys who have used it, and some people don't.

I've had the cylinders bored out to 61.5 and done a full rebuild of the engine,

Any advice is appreciated!

Thanks!

Paul
 
I wouldn't call it a critical swap, but the 650 cam profile is a gain over the 550 cam....similar to a light street profile cam....

but one thing of note is that the cam and rockers should be installed as a matched set unless they are all sent out for reconditioning in some fashion. I know there's a few places like CycleX that will hardweld the rockers and coat them and coat the camshaft so that both are brand new surfaces as near to original tolerance as possible. Otherwise running used mis-matched cam to rockers will cause premature/accelerated wear on both components.
 
Back
Top Bottom