Topic: Top end rebuild OEM vs aftermarket parts

[zabzob]

As per this thread I've found myself possibly going to do a head rebuild. There's a good possibility of valves needing replacement in addition to all the gasket and seals. I'm looking to do this as cheaply as possible, so I'd like some advice on where I can save some money and where it's best to pay a little more for genuine Honda parts. Would it be okay to use valves like these, and if only some are damaged is it acceptable to mix and match?

http://www.vintagecb750.com/products/4/engine/69/valves-valve-seals

What about the head gasket, etc? Am I asking for trouble if I don't go OEM?

[heyitsrama]

Oh! i also need this information, rebuilding a 550 motor, anyone have information about valve removal tools? Does the Harbor Freight tool work well? Some say that it does not fit properly?
Also needed information about hone kits / bore gauge's if anyone has information.
I found OEM gasket kits from eBay going to around 130$ while this Vesrah complete set is around 105.
http://4into1.com/vesrah-complete-gasket-set-vg-155-honda-cb500-cb550/

Sorry about the thread hijacking, i figure you also want the information OP.

[Bodi]

You can replace just any valves that are damaged. Nothing wrong with the ones you linked as far as I know. A damaged valve is probably on a damaged seat, so seat grinding may be required. The OEM valves have a very thin hard metal coating (Stellite) and don't last long after one grinds through that - if you need to do much to the valves beyond reseating with compound, new valves would be a good idea.
The guides should be checked and replaced if worn out. I don't know about suppliers for 550 guides.