IMO the Cleveland would be the WORST choice for an engine. Yes, back in the day the Cleveland was (and still is) a high performing engine, but today you can get a great performing windsor that fits in the bay. I have some Tubular Automotive headers for a 351w in a '64 Falcon, but if my five bolt 289 ever dies I will likely rebuild the 289 HiPo block I have into a 331 or 347 and keep the engine as compact as possible.
thank for your opinions i was wondering because i can get a free running 400 and c6 i was also talking to a guy who said the Cleveland will fit better than the Windsor because the exhaust ports were angled down more on the Cleveland. i have the original 289 how much would it cost for a mildly built 331 i considered that also
I had a cleveland in my 65 Ranchero years ago. It will fit, but it is very tight. I never found any headers that would work. You would have to get some custom built. My opinion would be a windsor. There are so many parts out there for them now. I am installing a stroker windsor in mine now. I also installed a TCI front suspension. That was a very nice improvement. Much more room with the shock towers gone.
"i can get a free running 400 and c6 i was also talking to a guy who said the Cleveland will fit better than the Windsor because the exhaust ports were angled down more on the Cleveland."
The 400 is NOT a Cleveland! Although it shares some valve train components with the 351C, it has a much larger block. I doubt it would fit without severe shock tower surgery. I'd go with a 289/302/5.0 Windsor for minumum hassle. The 351C and the 351W's are taller and wider than the 302's. Some people get them to fit in the Falcon chassis, but I suspect it isn't easy.