[urq] Re: why not big bore?

[Jorgen Karlsson]

Hi,

Your .1" oversize is 2.54mm over stock, that would be 83.54 if I am correct.
I know one guy that uses a 83mm bore with great results.

I don't know if I have to think about this on these engines but:

I don't want to risk bad sealing, I guess that there is a reason that almost
no one used big bores on these engines. When I get the chance I will ask a
guy that has built a few 5-600+hp 10v engines about this.

The rigidness of the block is also compromised with a excessive bore.

I don't think that cracked cylinder bores is a problem on these engines, but
it is on other engines when a bigger bore is used.

Jorgen