I do not think there was such a thing as an HP 440 in 74. Also, if the engine is built in 72, how can it be a 74? Anyway, you can identify if you have the earlier forged steel crank or the later cast by observing the harmonic balancer. If I recall, the balancer for the cast cranks is much wider than the about 1" thick forged crank. D^2 Quoting "Wm. R. Ulman" <twolaneblacktop@xxxxxxxxx>: Once > again, it turns out that the engine in my '66 is a '74 HP 440, built in > May of '72 (God knows why), a '67 manifold, and the whacky '68 AVS. > Which carb would be best, what CFM for daily driving, that gives the > most punch, and better than the 6 mpg I get now (8-10 on the open road, > woo, woo!) Also, in the big picture, I want to rebuild this > decompressed, low hp, post 1970 engine to at least the proper spec's of > a '66 440 with the proper hp. I know that at some point they switched > cranks, I don't know which would be in my engine, or which it should be > when it is rebuilt. I hope this all makes sense, and any advise is > truly appreciated. > > I guess I could try to buy a '66-'70 Chrysler with a 440 in it and > verify it is the original engine, rebuild it and swap it into my Crown > Convertible, than sell the Chrysler, but I hope I can rebuild mine to > it's true pre '71 glory hp days! > > Thanks > Bill Ulman > '66 Crown Conv. > Seattle, WA > > > -----Original Message----- > From: mailing-list-owner@xxxxxxxxxxxxxxxx > [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Rob P > Sent: Thursday, March 06, 2003 9:26 AM > To: mailing-list@xxxxxxxxxxxxxxxx > Subject: RE: IML: AVS back in production > > > Apparently Bill's problem is that his AVS has no adjustments. It's > factor > set or something. I've never heard of this and I thought they only did > that > with the later emission control carbs. Mid 70s-early 80s. I would > assume > > when they rebuilt it they could have restore the adjustability. That's > why > he wants a replacement. > Rob > > > > > > > >From: Elijah Scott <imperial1971@xxxxxxxxx> > >--- "Wm. R. Ulman" <twolaneblacktop@xxxxxxxxx> wrote: > > > So, give a choice which would people on this list > > > prefer? I need to replace my AVS on my '66 Conv. > > > >I've had a good bit of experience with both the AFB > >and the AVS. Unless there's a catastrophic problem > >with your AVS, a good choice would simply be to > >rebuild it. The rebuild kit is available from NAPA > >for around $30. I just did one a few weeks ago. > > > >The AFB is a little bit simpler, but there's no > >overwhelming advantage of one over the other (unless > >it's a matter of extreme performance tuning, which > >really isn't an issue for the average Imperial). > > > >Elijah > > > _________________________________________________________________ > MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*. > http://join.msn.com/?page=features/virus > > >