Sevensecondsuv Posted February 22, 2018 Share Posted February 22, 2018 Well if the 5.4 has a bad size/displacement ratio, the 4.6 is a total basket case. It's only about an inch narrower. Ford really screwed themselves for 30 years when they locked in the design with that 100mm bore center. Of course at the time it was just a special motor for Lincoln sedans and probably nobody envisioned that it would eventually supersede the existing pushrod engines for trucks and SUVs. I think that was another case of "Nasser Strikes Again". Quote Link to comment Share on other sites More sharing options...
7Mary3 Posted February 22, 2018 Share Posted February 22, 2018 Well if the 5.4 has a bad size/displacement ratio, the 4.6 is a total basket case. It's only about an inch narrower. Ford really screwed themselves for 30 years when they locked in the design with that 100mm bore center. Of course at the time it was just a special motor for Lincoln sedans and probably nobody envisioned that it would eventually supersede the existing pushrod engines for trucks and SUVs. I think that was another case of "Nasser Strikes Again". Yeah! I know a guy that put a 4.6L in a 64 Galaxie. Made the 352 that came out look small. Quote Link to comment Share on other sites More sharing options...
Sevensecondsuv Posted February 22, 2018 Share Posted February 22, 2018 Still, I'm glad to have the V10. If it wasn't for that abysmal bore center, they never would have needed the extra two cylinders. An overhead cam 10 cylinder is really a pretty exotic piece to play with and now the junkyards are full of them for $100 each thanks to Ford. Not to mention they've served well as truck engines over the last 20 years. Quote Link to comment Share on other sites More sharing options...
SoonerLS Posted February 22, 2018 Share Posted February 22, 2018 Yeah! I know a guy that put a 4.6L in a 64 Galaxie. Made the 352 that came out look small. The Coyote in my truck makes the 302 in my brother's '64-1/2 Mustang look tiny. Quote Link to comment Share on other sites More sharing options...
jpd80 Posted February 22, 2018 Share Posted February 22, 2018 (edited) The DOHC Mods make the Chev small block look small.. Edited February 22, 2018 by jpd80 Quote Link to comment Share on other sites More sharing options...
7Mary3 Posted February 22, 2018 Share Posted February 22, 2018 The DOHC Mods make the Chev small block look small.. Yes they do. Just like the Windsor in the picture. 2 Quote Link to comment Share on other sites More sharing options...
jpd80 Posted February 22, 2018 Share Posted February 22, 2018 (edited) Aww you mucked the gag up, I was hoping that someone would ask why the "Chevy" was painted blue... I have a 5.0 small block in my shed that's sitting on the floor begging for me to start that rebuild.. Edited February 22, 2018 by jpd80 2 Quote Link to comment Share on other sites More sharing options...
Stray Kat Posted February 22, 2018 Share Posted February 22, 2018 What was so hard about spreading the cylinders out a bit? I mean even the Coyote has the same dimension. I think there is more to it than just changing out tooling. I seem to remember something about controlling combustion is a lot easier in a 3 1/2 bore than it is in a 4+ " bore. Gm has to drop cylinders on the fly and I think Chrysler too along with their dual plug head just to equal what Ford does with a good basic design. Quote Link to comment Share on other sites More sharing options...
SoonerLS Posted February 22, 2018 Share Posted February 22, 2018 What was so hard about spreading the cylinders out a bit? I mean even the Coyote has the same dimension. The Coyote is actually a little bit smaller than the 4.6DOHC on overall dimensions. Quote Link to comment Share on other sites More sharing options...
twintornados Posted February 22, 2018 Share Posted February 22, 2018 Aww you mucked the gag up, I was hoping that someone would ask why the "Chevy" was painted blue... I have a 5.0 small block in my shed that's sitting on the floor begging for me to start that rebuild.. . That looks a lot like the setup going into my 1983 Mustang GLX convertible.... Quote Link to comment Share on other sites More sharing options...
LSchicago Posted February 22, 2018 Share Posted February 22, 2018 The DOHC Mods make the Chev small block look small.. And yet it looks so tiny in the F150's. Quote Link to comment Share on other sites More sharing options...
SoonerLS Posted February 22, 2018 Share Posted February 22, 2018 And yet it looks so tiny in the F150's. Until you go to work on it... 1 Quote Link to comment Share on other sites More sharing options...
White99GT Posted February 23, 2018 Share Posted February 23, 2018 Until you go to work on it... Easy to work on, plenty of room. The 5.0L F150 is one of the easiest V8 spark plug changes you'll do. 1 Quote Link to comment Share on other sites More sharing options...
White99GT Posted February 23, 2018 Share Posted February 23, 2018 (edited) 5.4L/6.8L Mods have a deck height over 10". I figure the 7.3L would possibly be a little wider due to the valve arrangement, a bit shorter because of the V-10's balance shaft, and not as long because the 7.3L is a V-8. It's amazing how compromised the 5.4L and 6.8L design was. Absolutely at the limit of displacement, lousy rod ratio, small bore necessitating a 3 valve head, and huge external dimensions particularly considering their displacement. 10.079" deck height It wasn't at the limit of displacement A 1.6:1 rod ratio is fine, the 5.4 had some of the lowest inherent piston/cylinder wear of any engine I've seen. There's not many V8s that will clean up with a .005" over-bore like high mileage 4.6/5.4s normally do. The importance of rod ratios is overblown. BMW ships their new M3 with a 1.48:1 rod ratio. Edited February 23, 2018 by White99GT Quote Link to comment Share on other sites More sharing options...
SoonerLS Posted February 23, 2018 Share Posted February 23, 2018 Easy to work on, plenty of room. The 5.0L F150 is one of the easiest V8 spark plug changes you'll do. My post was a joke, but have you ever seen a 302 in the engine bay of a '70 F-100? I could get in there with it to do the plugs. Of course, I was 17 at the time... 1 Quote Link to comment Share on other sites More sharing options...
blksn8k2 Posted February 23, 2018 Share Posted February 23, 2018 Aww you mucked the gag up, I was hoping that someone would ask why the "Chevy" was painted blue... I have a 5.0 small block in my shed that's sitting on the floor begging for me to start that rebuild.. I've got a '68 302 4V lying in the shop that I'm guessing originally came out of a Mustang. It still has the cast iron 4 barrel intake manifold. It was in my '75 Bronco when I got it. I pulled that out of the Bronco (bad camshaft) and replaced it with a stroked 351 Windsor that now displaces 393 ci. 3 Quote Link to comment Share on other sites More sharing options...
bluetoy Posted February 25, 2018 Share Posted February 25, 2018 . That looks a lot like the setup going into my 1983 Mustang GLX convertible.... Which one the 5.0 or the 5.0.lol The Coyote? Quote Link to comment Share on other sites More sharing options...
twintornados Posted February 25, 2018 Share Posted February 25, 2018 Which one the 5.0 or the 5.0.lol The Coyote? . The 5.0L Windsor motor... 2 Quote Link to comment Share on other sites More sharing options...
jpd80 Posted February 26, 2018 Share Posted February 26, 2018 (edited) Well I've just pulled the 5.0 EFI out of my 91 Falcon, so glad it was a compact engine.... Getting a rebuild with baby Voodoo roller (211/219) fully ported GT40 heads and intake, shorty headers, 24 lb injectors, just something nice and torquey that pulls well to just over 5,000 rpm and then shifts. Edited February 26, 2018 by jpd80 3 Quote Link to comment Share on other sites More sharing options...
lfeg Posted February 26, 2018 Share Posted February 26, 2018 Funny thought, a fully dressed Coyote nearly takes up the same space as the old Super Duties (401, 477, 543). 1 Quote Link to comment Share on other sites More sharing options...
ZanatWork Posted February 26, 2018 Share Posted February 26, 2018 Those big double-cam heads take up some space, for sure. It's maybe the only thing I kinda envy about the GM LS motors...but I'd just use an older Ford V8 if I had a space-limited project.I forget the company, but there's a new FE coming out, one that has modern tolerances and improvements to oiling, etc. That would be very tempting for any number of uses. 2 Quote Link to comment Share on other sites More sharing options...
LSchicago Posted March 19, 2018 Share Posted March 19, 2018 (edited) You're quoting peak in a truck engine? Must be a car guy. I've seen the graphs. The 18 F150 5.0 actually makes significantly more RW torque at 2500 RPM than the 6.2. Edited March 19, 2018 by LSchicago Quote Link to comment Share on other sites More sharing options...
Hemiman Posted March 26, 2018 Share Posted March 26, 2018 From the article linked below: Report: 2019 F-150 Raptor To Receive Ford’s New 7.0L DOHC V8 MotorSources told Reuters that the 7X engine, designed for Ford’s truck line and other special applications, will also feature Direct Injection, Anyone know if this is factual? https://speedtwitch.com/report-2019-f-150-raptor-to-receive-fords-new-7-0l-dohc-v8-motor/ Quote Link to comment Share on other sites More sharing options...
fuzzymoomoo Posted March 26, 2018 Share Posted March 26, 2018 Seems unlikely for the 2019 model. I thought the 7x wasnt supposed to go into production until next year? Quote Link to comment Share on other sites More sharing options...
tbone Posted March 26, 2018 Share Posted March 26, 2018 This will really irritate me if true, as I would have preferred the V8 over the V6. With that said, im not convinced this is true. The last gen Raptors body never changed over the course of its life. Id be surprised if they were to update the current body only after two years of production. Time will tell I guess. Quote Link to comment Share on other sites More sharing options...
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