question on o-rings

[gsxr141]

just wondering if anyone has had their block o-ringed?
my builder wants to o-ring the block as insurance for running high boost.
I understand the way it worksand did some research.... looks like almost all high hp race cars do it.
just looking for any info from people that have done it.

 

[hvyman]

Very hard to o ring a 7m and have it last as the space between cylinders is so small. And if it fails the block is toast.

Better off just sticking to a mhg. A very low ra on the block and head and a very clean and well prepped and assembled engine with a mhg and arp would be plenty