What about hotrex's thread where he cracked all 4 sleeves after doing this? I think it was on Hondaswap ot Ht. From what I remember, he was ass raping it at 23 psi for quite some time though.
You gotta consider the source.
His timing prolly wasn't right and didn't machine the block AFTER the filling.... Not 100% positive... mabye he should answer for himself...
I've filled 10 blocks, and 2 of them were my own.... and NEVER had a problem EXCEPT when my main relay FAILED (like I hit a Brick wall) at 100+ mph @ 15+ psi and cracked all 4 of my Wiseco slugs..... but the block was fine....LMAO.
His timing was 100% correct.
The sad fact of the matter is that B16 blocks crack sleeves worse than anything. The only Honda blocks that I've broken sleeves in are B16, and the rate of failure is 50% of them that make more than 280whp.
hotrex's $45 worth of Devcon saved him a tow bill home, as the sleeves couldn't go anywhere. The end.