I'm looking into Crane valve covers for my BB ( May built ) 68 Chevelle. Crane lists Jan 68 thru 69 including COPO, L-78 etc. as the same part no. The question I have is this: Should the 68 left side valve cover, have the temp wire clip like the 69's? The 69 Chevelles have the temp wire coming from the wire harness near the center of the wheel well, then thru the valve cover clip to the sender. The 68, with the short water pump, and driver side alt. has the temp wire coming off the wire harness by the back of the alt. and is not long enough to go down to the clip (which is down by number 5 spark plug) , then back to to the sender. Seems like the 68's shouldn't have a clip cause theres no way the wire is long enough to use it. I know the wire harness is correct cause it's exactly like the original. When I order these $500.00 valve covers I would like to know what I'm talking about.... Thoughts?