i searched with no luck..sure its been brought up before........ looking at a late 5.0 long block..........will my early 302 accessories fit the 5.0 (intake,brackets,v belt)??? what other problems will i run into?
The blocks don't have a bolt hole for the clutch linkage, have to get a bracket that bolts to the bellhousing. Injected engines don't have a fuel pump on the timing cover. The cover is also different for serpentine belt water pumps. The early cover should bolt up. Don't know about head bolt holes for accessories. Balance is also different, need the balancer and flywheel/flexplate from the later engines.
Nothing bolts from one Ford to another, not even the same year. If you go in armed with that forethought you should be ok. Just kidding, I am a Ford guy and unless you have a really dependable source for knowledge on what fits what you can end up with a ****** noggin from beating it against the wall. Lots of the stuff was changed mid year, like the rear main seal. Ford was(is) notorious for running production changes. Then throw something goofy in the mix like an econoline and you might end up with a ******* front cover or other weirdness.
They are not so different that you will have much problem, but there are always details that generate headache (and expense). Relic Stew mentioned a detail I hadn't thought about concerning the clutch linkage. Early motors mostly had front sump oil pans; the dipstick goes in the front cover. Later motors have rear (dual) sump pans, some with the dipstick thru the block, some thru the pan. The pulleys and front dress seem to me to be the item that should be easy but isn't. None of this is to say it's impossible; make friends with a salvage guy, and a knowledgeable parts guy, and it isn't that hard to work out.
A Ford 302/5.0 interchange is straightforward and relatively easy. All of your early accessories will bolt straight on. If you had a very early 3 bolt crank pulley you could very easily redrill the 4 bolt pattern without much trouble since the pulley "pilots" off the hub center hole. Be sure to use the early front cover if you go to early water pump and V belts. One are of concern for rodders is when you go rear sump. The early blocks are not drilled for a dip stick tube at the rear. I've used a Flathead dipstick tube and mounting boss on the pan just like Henry intended. Works fine. The crank balance and rear main seal don't come into play if you're simply changing outside components and using the flywheel or flexplate that came with the engine you are installing. Ford always catches it in the tail for making running changes. I know of no machine or automobile make that has stayed exactly the same for very long. The 302 Ford was used to power everything from Mustangs to trucks and boats accross 4 decades it's no wonder there were some design changes. Look at the current GM "LS" engine series and make sense of that for me. The only area that could slip by is the dist gear. A 5.0 uses a steel billet camshaft where the early was cast iron. If you use the early dist you make want to get the steel dist gear to match the camshaft in the newer engine. Just measure the dist shaft diameter and contact a Ford racing dealer. It's just a matter of matching material hardness, the old gear could last awhile but eventually may wear from contact with the harder cam material.
just FYI the balancer and flywheel weights are 0 oz, 28 oz, and 50 oz. If you go to the salvage yard you can usually get the older parts dirt cheap. I am talking everything and then some. I have even used some old saginaw steering gear boxes with modified brackets to run on a 302 and they originally came off a 351/400 modified. There are just so many options you have, even go to a boat salvage yard and get cool looking trick 302 marine parts, air cleaners, valve covers etc. What ever you do make damn sure you write down every yr, and make, model that those parts came off of. If you find something you really like, just go to the parts store, and see if they can get you a new part. I am sure I am missing a **** load of stuff, but it is all over the web, jsut google it.
28 and 50oz only, no 0oz. 28oz would be anything prior to about 1980 50oz after. The first 50's were the 255cid in 78? All 351W's are 28oz, regardless of the year.
I could swear I had a 0 Balance fly wheel for a 302 out in the garage. Maybe it was one off a totally different engine, but I could swear I slipped it on and it bolted up. Now I could be dreaming lol Anyhow I stand corrected. I wouldn't use anything but the 50 or 28 anyway. not that there is really a choice It's been a while since I have had all my SBF stuff out of the shelves.
Professional Products makes a balancer in 28 & 50oz that has the 3 and 4 bolt pattern both.That will allow you to use earlier accessories.
national parts depot sells the balancer and the flexplate you need as mentioned dont forget a new steel dist gear also i have the 5.0 in mine since 94
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