Well, height won't be a problem, there's plenty of that! This is a good "rule of thumb" measurement page: http://www.carnut.com/specs/fengdim.html. According to that page the AMC GEN-3 V-8 is 21.50" without the exhaust manifolds, which probably add another 1.50" to each side, for 24.50" total width. There's only 20.5" between the narrowest part (upper part)of the suspension brackets on the American, 21" between the "humps". I just posted some photos of the engine bay of a 63 American with an SBC in it. The builder used early Chevy II "over the rail" headers and cut some of the rar part of the wheel wells out. I'm thinking that CJ-5/7 AMC V-8 "over the rail" headers would be similar. Still requires some cutting -- there's no way to get a V-8 in without it. A guy over on www.hotrodders.com has two interesting 58-60 Rambler swaps going on -- one a Mazda twin rotor rotary from an RX-7 (I think it's turboed, not sure now), the other a Quad 4. Both are rather narrow engines. He hasn't posted any pics of the Q4 with the intake on yet, but says he's measured and it should fit. From the pics I've seen of the engine I think he'll have to cut the hump off the left side. --------- Date: Thu, 12 Feb 2009 00:00:56 -0800 (PST) From: d stohler <das24rules@xxxxxxxxx> i am still trying to determin if i can fit a 304-401 into my 63 american without doing a lot of metal work on the fenders and firewall. can anyone give me the external dimentions of a v8 with exhaust manifolds and everything on it? width left to right, height oil pan to carb. i know, intake will differ in height a little, stock intake manifold would be best to go by. and also front to bak. bellhousing face to the front of the water pump/accessories. only accessory going on this car would be an alternator. i have 2 360's located, and i may be able to get ahold of a 401. if it could fit, i need to know so i can get what ever im gonna use. -- 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