Currently I have a tired 302 in my A Tudor. I am planning a rebuild this fall, but also have access to a freshly rebuilt 351W. My questions are as follows: A. Will the 351W fit in my A with a full hood and hood sides as the current 302 does? B. Can I use the same headers from the 302? Sanderson says yes, but I want to be sure. C. Does the 351W use the same mounts as the 302? Thanks!
Bull, In answer to your questions - (A) - Not sure but please realize that the Windsor is wider by a couple of inches. (B) Yes the headers will bolt on. The may not clear the fram due to the extra width of the Windsor. (C) The Windsor shares mounts with the 302 and should bolt in where the 302 mounts are. 41 Dave
Can you tell me exactly how much wider and where the 351 is wider so I can break out the tape measure?
Bull, The extra width is beacause the block is wider. The instake is also wider that a 302. The wider heads and intake makes the exhaust manifold surfaces wider. I can try in the next day or so to measure a 351W. Will let you know ! 41 Dave
I think I remember the Winsor having an inch taller deck, so I s'pose that would work out to 2 inches total, yes? its been a while since the Ford motors...
Techically speaking, from a non techincal guy. The 351W has a taller deck height. Its not wider, the block is the same width by the mounts and all. The deck height on a windsor is 9.480 as compared to 8.205. The best bet is to measure it or just measure the width of a windsor intake and your 302 intake. the difference is your extra width. Being a Ford guy, I would roll with the 302 just because they are more easily built. More intakes, more cranks, more options.
Because of the increased deck height, the headers will be higher up in the frame as well as closer to the frame rails. When you are measuring it up, don't forget to check the clearance around the steering column.
According to my estimate of the trig involved, the 1.3 inch increase of deck height should make the motor about an inch taller and two inches wider. By the way, the 302 in my roadster is plenty snug enough, but with a little more notch to the firewall (making it wider) and some tweaking to the headers a 351 should be a satisfactory fit.
You need to ask yourself more questions. Cost involved? Weight difference? Looks? I think if you just ran the top section of the hood, your 351 would fit fine. Headers will fit but the exhaust will have to be moved. (the height/width difference as already explained) The other thing you should think about is the weight. Your not getting much more power but you are adding 150 lbs on the front end (of a most likely heavy front car) But then again, if cost is an issue and the 351 is the right price....go for it!
The 351 W will be approximately 60-65 lbs. (not 150?) heavier than a 302 depending on how they compare as far as types of intakes and water pumps used. (aluminum or iron)
If you are planning a rebuild anyway, just get one of the stroker kits for a 302 and have a 347 (almost 351) in the same package without having to start changing things.... They run like $1200 or so. Dave
Go with the 351W. The engine mounts work. The headers work, but may be other exhaust issues - as mentioned, the ports are slightly higher & wider. I see someone listed actual measurements - they seem big to me based solely on memory - I want to say 1.1" taller, 1.4" wider, & about 70lbs heavier (+/-). Still, you're better off with the 351W....
There really is no decision to be made....the 351W is the engine you want. It's better in every way. Insignificantly heavier in the grand skeem (sp?). Stronger. More power potential. Dollar for dollar it is almost exactly the same cost to build a 351W as a 302. Parts are plentiful. A factory 351W block can go all the way out to 418 cubic inches (or a little more if you get a real good block) and it's stout enough to handle 700+ hp. A 302 block can give at most another 45 cubic inches and questionable/debateable oil consumption. A 351W can handle another 67 cubic inches with no oil consumption issues.
the same thing can be said if the 351 - go with a stroker kit - 408, 414, 427 and even 454 cubes from your little 351... 427 ccubes in a light car sure would make a runner. Top it off with aluminum heads and aluminum intake and it'll also be lighter than a cast iron head/intaked 302....
Anything bigger than a 418 (4.030"B/4.100"S) will require extra thought and likely an aftermarket block. The crank throws on a 427 stroker (usually 4.25" stroke) Could actually contact the camshaft. A 454 absolutely requires an aftermarket block. Just some food for thought.
Wee . . . spending my loot for me eh guys? Really I don't want to lose the hood sides or run new exhaust. That rules out the 351 most likely. Also its got a freshly installed 2000 stall in the C4. Anything too wild and I'd need more stall. 302 it is. I can find stock spec rebuilds for around $1200-1400 and 325-330 horse builds for about $2300-2500. Anyone got a line on a 302? Stock or otherwise. Let me know what you've got! Any good sources to buy a SBF from locally here in MN or online or otherwise?
Late model motors that have hydraulic roller cams are worth considering. The ability to raise and lower the valve quickly lets you have relatively short valve events, but plenty of area under the curve. This is great for horsepower, midrange torque, and allows a decent idle as well. Costs a little more, but probably worth it.
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