[Krow]

Oring removed from block should the empty groove be filled and if so what can be used?…thanks

[johnta1]

O-ring around cylinder bores?
If so, why not use the wires in them?
Probably no problem with being empty if using correct gasket?

[Krow]

Yes, oring in block, but the oring is removed so now there is only the groove, was interested in filling it with something maybe copper ring so it lays flat or some kind of sealant or yes maybe the right gasket..open to options..thanks

[johnta1]

If you don't need the benefit of the O-ring, use a composite gasket. I'd say you can leave the groove empty. But you can also use a copper wire of the correct diameter. It would probably make a slight indentation in the gasket and possibly help seal also.

If you wanted copper head gaskets, you would need the O-ring probably.

[Krow]

Not interested in a copper gasket just looking to fill groove..thanks

[Tom Vaught]

Solid copper wire comes in many diameters.

Buy a few lengths of different diameter solid copper wire and tap a piece in place. You can look at the end of the wire and see if it just fills the groove when hammered flat.
Even if it is a few thousands below the groove top you have basically filled the groove.

Have fun.

We have done that on a few "Gas Ring" blocks where we wanted to see the difference in no seal to the head and the gas ring "following the head" as the boost pressure was increased.

Tom V.

We always used helicoflex rings to seal the engines.

https://technetics.com/wp-content/up...nl_low-res.pdf

[mgarblik]

Here are some options to consider if you don't want to leave the grooves open. They can be brazed-in with mild pre-heat. They can be welded-in with a silicon/bronze welding rod for filler. Both will require a re-hone from the heat distortion. They can be filled with copper wire. Typically, if the wire is in the block the wire is .041" The groove will be cut at .039", .025-.030" deep. You can just have the groove machined out and restore the deck height with the proper thickness Cometic gasket. (that would be my choice). Some people fill with a metallic epoxy, like JB weld and such and make sure the gasket doesn't depend on the groove area to seal. You have allot of options.

[Krow]

Thanks for all the replies, i think the copper wire may be what I will do, like Tom said, there are a few diff size wire I can play around with to fill, I don’t really want to mess around with the block to much or weld, the motor just has the heads off and runs good the less invasive the better..thanks again for all the replies and help