I can now make such a statement. I looked this item up in the 60 factory parts book & it lists it as a silencer, part# 1900763. There are also other part numbers for the other 1960 models. John hugh hemphill wrote: > Hi, all. > > I was interested to see if anyone could make a definitive statement about > this padding. It is my contention that it is not a factory original item. > Maybe it was fitted at the dealer, or later on, but not at the factory. > > The only "evidence" I have is a publicity picture in the 1955 - 63 Photo > Archive book. There is a mechanic tuning up a 57, and making it look jolly > easy, too, and there is no padding under the hood. > > Conversely, the 59 & 61 engine bay photos DO show a pad. So, who's to say? > > Down here in Texas, the sun is the main culprit in terms of destroying > paint. Sooner or later, your horizontal surfaces are going to be toast. I > cannot see any good reason for a pad in this climate. The Engel designed > car, before he moved he moved to Chrysler, we have that has one and it is a > horrible mess. Some one else has already posted on the negative aspects of > these pads so just put me down for a "ditto." > > Under hood air flow is an element to consider with the Hemi in the 57/58 > Imperial. It is a huge engine in a car designed to be very, very low. The > block rides low between the wheels, the heads are in the middle and the > valve covers sit above the rocker arms but are impeded from being cooled by > all the paraphernalia lumped on top. This is not a pretty engine bay. The > radiator is behind the A/C cooler. The A/C cars have an additional blade on > the fan in the attempt to coerce more air movement under there. I think > the pad would be virtually touching the air cleaner and the oil filler cap, > and would act as a heat trap for the engine to a great extent. > > My poorly made point is that such a pad would actually not allow cooling air > to ciculate around the engine and then down under the car. > > Hugh >