Depending on the area of use often the larger engine [within reason] will get the same or better mileage then the little engine. I've had three close to same size vehicles here in the last 8 years 4.3L V-6 in an S10 crewcab 4.7L V-8 in a Dakota Crewcab 4.7L V-8 in a Grand Cherokee All get the same 15-17 mpg city.combined. My wifes current 97 XJ with a 4.0L Stick gets 16-18mpg with her unrefined driving style. So not much diff in any of these vehicles in the hills around here. Now, if my son or wife drive my V-8 Grand it gets 13-14mpg. They drive like "Green light, go, Red light stop" No inbetween... My wife wanted my Grand Cherokee. I told her we could not afford for her to drive it. Boy did she get mad :] She has passed the days when she should be driving standard shift in hers now. She pulls out in second if she can, shifts to third, leaves it there. often she also shifts 1-3 and leaves it there. On the 70mph interstate she will not bother with 5th either as 4th is good isn't it? I tell her, I do not want to hear her compalin about mileage with the way she drives. yeah, you guessed it, She gets mad about that too :] -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrc II " Chronic Pain Hurts" -------------- Original message ---------------------- From: Frank Swygert <farna@xxxxxxx> > If you use a Ford 170/200/250 six you will need to swap the transmission also. > If it's a stick from an older Ford (170/200, but not the 250) your existing > stick trans might fit, but no guarantees the input shaft is the same length or > the trans bolt pattern is the same. Best to swap trans as well, and you may as > well go with the 250 for best power. The car will still get good mileage. The > smaller engines may deliver a little better mileage, but at the sacrifice of > safety (in today's traffic) and "fun factor". If you don't particularly like > driving the car why bother? A little more fun (power) will be worth 1-2 mpg. > > The rear axle will be fine -- the AMC 15 is good for up to 300 hp easy enough, > though I wouldn't run over 350 hp, and wouldn't run tires over 9" wide or > slicks. You'll get tire spin before breaking the axle with street tires. > > > ----------- > Date: Wed, 30 Apr 2008 09:22:07 -0700 (PDT) > From: Joe Smith <know_ware@xxxxxxxxx> > > The L head on my 61 has a stuck valve, and is currently soaking in Marvel > Mystery Oil. > If that doesn't loosen it up I know my options include: > 1. pulling the head and re-working this engine > 2. dropping in an OHV that is more or less available (for an unknown price) > 3. street rodding it and putting in a Ford engine of the 170 series. > 4. street rodding it with an electric motor > > If I head down the path of number 3, will I need to swap the transmission and > rear axle also? If so, then with what. > Keep in mind this is for a daily driver type car 20 to 40 miles per day of city > driving, no racing of any kind, and few if any trips over 60 miles. I am > interested in miles per gallon. I am not interested in having a sleeper that > will blow the wheels of a Corvette. > > -- > Frank Swygert > Publisher, "American Motors Cars" > Magazine (AMC) > For all AMC enthusiasts > http://farna.home.att.net/AMC.html > (free download available!) > > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list