looking for tips and pointers on top end rebuild

[Guest]

OK my GS 850 lost compression in all cylinders I'm running at 75psi and 65 on cylinder 4 with a major leak down but holds when I put oil down the cylinder and boosted up to 120. I had feeling this day would come because my father ran it in 1\4 mile stock drags for suzuki back in the late 80s. So I know my rings are done now can I run aftermarket gaskets cause I'm not rich or else I would not be asking I know I need a OEM head cover gasket because of the tach witch is already new last year. If you know good sites to get qulity reproduction parts. I already have someone who can plane the head and cylinder. I should not have to bore because the bike has 19000 original miles i will be measuring oval out though and I plan on running OEM rings unless I can get a good set of chrome molly rings for close to the same price if you know where I can get them let me know. But should the head gasket be OEM I can't find anything on crush down thicknesses on the specs for different gaskets. What's the best rought here and what are some different problems I might run into during the rebuild I've rebuilt car engines harleys and single lungers I haven't done a inline four bike engine. Any help would be greatly apeciated.

[cowboyup3371]

Use OEM gaskets or you'll be faced with redoing the work later once it starts leaking on you.

[posplayr]

Use OEM gaskets or you'll be faced with redoing the work later once it starts leaking on you.

+1 look on eBay for nos oem parts

[JTGS850GL]

The GS850 can use an aftermarket valve cover gasket since the tach drive is not in the valve cover. +2 on using only OEM head and base gaskets.

[davebgs850l]

OK I'll get OEM gaskets dose anyone know where I can get chrome molly rings I do know once broke in they last a lot longer than the stock rings