Topic: Would a 1983 cb550 sc header fit on my 1980 cb650?

[drewross]

Hey all, just wanted to ask a quick question and basically did it in my title.  Does anyone know if the header off a 1983 cb550 sc would fit onto my 1980 cb650 custom?  It looks like it would fit but I am only looking at it online so there isn't a way to tell for sure.  I figured someone on here would be able to answer probably.

thanks

[mlinder]

No. Not a direct swap. Doesn't mean you can't 'make' it fit with some tools and a welder, though.

[drewross]

bummer.  how much work would need to be done would you say to get them to fit?  sounds like it wouldn't be worth the swap.  wish I could find a black 4 to 1 or 2 header to fit my bike.  know of anywhere to look?  i'v been looking around a bit online, but no luck.  seems as though the 1980 cb650 doesn't have very many exhaust options.

[mlinder]

 no idea, never tried.

[whitesonj]

I know this thread has been dead for three months...

But what kind of person and fellow rider would I be if I didn't pass this along?

Check out MAC.. They've got a 4-1 system I'm going to be picking up sooner or later:
http://www.macperformance.com/store/category.cfm?SID=3&Category_ID=1457

The above link doesn't contain pics, but here's one for example:
http://media.photobucket.com/image/1980%20Honda%20cb650%20mac%20exhaust/motomoon900/201-1401.jpg

Also on ebay. This one is kinda pricey but it's a better pic.. Their all black system is even cheaper:
http://cgi.ebay.com/ebaymotors/Honda-CB650-CB-650-Chrome-MAC-4-1-Exhaust-System-79-82-/160462572477?cmd=ViewItem&pt=Motorcycles_Parts_Accessories&hash=item255c508bbd#ht_1655wt_958

I hope this falls on needy eyes!!

[81cb650]

I'm curious about this as well.  Usually the header pipes can swivel around a bit from where they connect to the muffler.  So as long as the diameters match maybe it could be done with diy bracket? anyone know if the 550 pipes are the same diameter?  If it's possible I'd buy the bike in the attached picture just to put the headers on my 650

[calj737]

I'm curious about this as well.  Usually the header pipes can swivel around a bit from where they connect to the muffler.  So as long as the diameters match maybe it could be done with diy bracket? anyone know if the 550 pipes are the same diameter?  If it's possible I'd buy the bike in the attached picture just to put the headers on my 650

Its often about the spacing of the ports, not just the pipe diameter. The intake and exhaust ports of the 650 are not a match to the 5x0 series of SOHCs. Maybe, some of the newer 5xxs. Ripple Rock Racers sells a Hindle system for the 650 that is well made, lightweight, and very reasonably priced (Canadian exchange rate to the US too).

[Joewago]

Hi folks. Seems MAC doesn't make the 4 into 1 for the 79-82 models anymore... Did anyone ever find out about nighthawk headers on the 79s or 80s? I like the hindle exhaust but they don't ship to CA.

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