I wonder why they didnt go ahead and drill the cross bolts on #5 specially since its prepped for it.. but at least there is a STRONG block for the BB guys... my mega block with 4.5 bores only had .200 walls at the thinnest point.. whats the next ring size over a 4.5.. does chevy have a 4.6 ring
4.600 and 4.625 are common sizes for BBC 565 cu in strokers in 9.8 deck Dart Big M blocks....lots of rings available....I'm learning it all for S/C and S/P racing....it's like learnig to speak all over again.
