VF500 84/85 block into 86

Hi,
Silly question:

Can I take a donor engine from an 84/85 VF500 and drop it into my 86?
Why I ask:
Fuel Pump:
- to the best of my knowledge the 86 dropped the fuel pump from the intake system
- will this simply mean I need to use my 86 carbs and tank on an 85 block?

Carbs:
- I know that the 86 opted for a slightly smaller diameter carb that the 84/85 modesl
- Was this change also accompanied with a timing/cam change = would I need to sync my 86 carbs?

And why the heck am I doing this?
Well. I've basically chickened out on a rebuild of an 86 block after getting the heads off.
If resynchronizing is involved though, putting the head back on might be less difficult.

Many thanks,

John M

 

Well - I picked up an 85 with a semi-running engine (fuel pump dead), so into the 86 it will go.

 

It would work just fine. The fuel pump is a non-issue. You can run the 86 carbs if you like, but the 84-85's are larger and make more power.

 

So the 84/85 carbs will work without the fuel pump?
(cool!)
That might make things a wee bit easier still

The donor bike I've acquired also has a 4-1 exhaust, however, one segment is crushed (from the front left cylinder) not sure if I can weld a new segment in... however, I suppose that is a ways off.



John
(thanks again Jamie!)