Originally Posted by cobalt327
Are you saying the block is drilled for 4 bolts but now has 2 bolt caps? If that's the deal the caps won't be registered in the block recesses the way they should be. This would leave them largely unsupported and I would think this would be an invitation to have the caps moving laterally, aka cap walk.
Having said that, I cannot remember if the 2 bolt caps are as wide as 4 bolt caps. Too late to go out to the shop to look right now.