Topic: engines from a cb550 compatibility with a cb500?

[Wnbasac]

i have an opportunity to acquire a CB550 engine for parts almost free but i have a 71 CB500 would this be a great buy?

I'm not sure what is interchangeable between the 550 engine that could be used on my 500 is it a GO a NO go?

tks,Lou

[goldarrow]

Is the 550 engine complete? If it is, should just drop right into 500 frame

[FunJimmy]

Snag it. The 550 engine is much improved.

[bryanj]

As a complete unit all you need to fit it is the RH rear engine mount plate from the 550 as that holds the clutch cable,as parts only the headgasket upwards is compatible

[dave500]

crankshaft,primary shaft with starter sprag etc,mainshaft needle roller,one or two transmission gears,the kick start mechanism,the sump,oil pump,oil filter housing and bolt,alternator and cover,points/advance unit and cover.

[Frostyboy]

crankshaft,primary shaft with starter sprag etc,mainshaft needle roller,one or two transmission gears,the kick start mechanism,the sump,oil pump,oil filter housing and bolt,alternator and cover,points/advance unit and cover.

^^ Bloody show-off!    ^^

[Stev-o]

crankshaft,primary shaft with starter sprag etc,mainshaft needle roller,one or two transmission gears,the kick start mechanism,the sump,oil pump,oil filter housing and bolt,alternator and cover,points/advance unit and cover.

^^ Bloody show-off!    ^^

Expert!   Ain't showing off if it's true....

[dave500]

starter motor,con rods.

[jonda500]

...camshaft/sprocket/camchain

[dave500]

primary chain,neutral switch.

[goldarrow]

You guys forgetting bunch of nuts and bolts

[Stev-o]

....and washers

[bryanj]

Is that expert as in

Ex----used to be

Spurt---A drip under pressure

[dave500]

youll have to ask frostyboy about that bryanj,its in his avatar but hes far from that let me tell you!

the sump plug can also be used between the two engines,and the dip stick!along with a multitude of transmission circlips and special slotted spacers,and those set rings that locate the main and countershaft bearings,alignment dowells and gudgeon pins,id be snapping that 550 engine up man,i prefer them over the 500 anyway because of the improved clutch and transmission.