Hi,
a few years ago i purchased a pontiac engine and was told is was a 455. i didn't pay alot for it and dont know alot about them but have since found it doesn't seem to be that at all.Im hoping someone could tell me what ive got because nothing seems to match up with the numbers ive got.     It has WDC stamped on the front of the block and N 10008073 and A140 on the top back. There is also 265 stamped on the side.I would assume its a 265ci but it has different length pushrods and valves in the head are different size. The heads have G280 and G230 on them.The inlet manifold is a 4 barrel with an adaptor and a two barrel Rochester Dualjet 210.Anyhelp appreciated just wondering if i can throw it away and not find out its something i should have kept.It also has a Gm auto with 375 on the bellhousing.