NO
Some mega blocks and a few others require some grinding on the block for pushrod room at or near the deck of the block ( you will see where at mock up ) the push rods are in at an angle and it is said that there is some power in going with offset lifters and getting them straight but unless you have the lifter bores bushed you can't use them as the only offset lifters available are not solid body and could cause oil pressure issues go with standard lifters and let her rock!