Originally Posted by Jkingof956
ok so buying a set of one of these rods will have enough clearance and no machine work required like grinding on top and bottom of each bore?
You'll still want to verify the main bearing bore on each hole, making certain that each hole is round and parallel with the other holes. Then, you will want to cut the block decks in a mill that registers off the main bearing saddle, so that each corner of each cylinder head ends up the same distance from the centerline of the main bearing bore. If the block decks are not equi-distant from the centerline of the mains, then the heads can sit askew on the block (sitting either uphill or downhill, depending on how you view the whole mess) and the intake manifold will have trouble sealing with the heads. Get everything cut true in the first place and life will be way easier.