Topic: 550 engine modifications

[moham]

I apologize in advance if this question has been answered before and as a result bores anybody...but:

I have read a lot of threads concerning 550 overbores, bigger pistons, 650 heads, etc. but what I couldn't find addressed is what changes (if there are any) with gaskets in these situations. Do cylinder head and/or cylinder base gaskets or cylinder o-rings need modification in overbore or alternate head situations?

[bill440cars]

        Will this help? Check this one out. Paul (paulages) is responsible for this one and there is more, but you have to do a bit of looking for it.

                               Happy reading,  Bill

        http://forums.sohc4.net/index.php?topic=40414.0

[paulages]

you won't need a new base gasket unless you go with larger sleeves. in my case, i just bolted down the base gasket and cut it to size. cometic can make you a head gasket to whatever bore size you want, they'll just want to know the specific bore before making it.