All the 3100s I've done the pushrods go though the gaskets, not sure what they mean by "guides". Maybe inquire at a dealership(have vin # ready). you could "Price" the set there and just ask if the kit comes with guides. If they say yes, then get the one with guides. although, like I said, all the kits I put on it was just the two large peices that go along the heads, 2 little rubber peices for the vally, and rtv for the corners.