Not Ranked
I do not envisage going above about 400 HP at the flywheel as the compression ratio will be limited by the fuel we have over here, so a 2 bolter would be OK. I do like engines that rev so maybe the 331 would be preferable over the 347.
Here in the UK it is not common to sleeve any kind of block, probably due to cost, so I have had no experience of this myself and do not know of anyone else running a relatively high performance motor with an iron block that has been sleeved.
I still do not have a price on the Boss block yet.
Andy
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