331 Stroker, 347 Stroker, or 351W? Custom built or crate?

[nvrstuk]

Thanks. Didn't know anybody got it on video for almost a yr!

Took 4 attempts at 8psi and made it with 5psi.

 

[Madgyver]

Ok back to not so serious, but Brian is right, only thing better than 600hp is 700hp lol

You mean this isn’t normal cruising speed for broncos? Let alone ones that wheel with Bailie for 4 days and drive home?

i can do that but i think my speedo gear is way off... lol

 

[lars]

All my fault TS...took decades.

I know who "he" is!! lol

Probably eating herring on pumpernickel bread as I type!

Shortly after I got my 408 running and broken in I had a male teenager moment and stuffed the right pedal with a GPS app running on my phone. 120 even when I lost my nerve, and before I lost my Bronco, or worse. Wish I had a video to prove it. Not that it matters, because I'm never ever doing that again. That said, it was still tracking straight. We have a lot of arrow-straight empty rural roads around here so finding the venue wasn't an issue. Did I mention I'm never going to do that again?

 

[nvrstuk]

Get's there quick doesn't it?


I'm 100% with ya. When mine shifted out of 3rd at 103- like you I was tracking straight and doing good but my frt end was up from weight transfer from hard acceleration and when I glanced down at the speedo I just pulled my foot off the pedal and I'll bet the frt end dropped at least 6", probably 8"!
Instead of looking at the sky I was looking at white stripes. Yeah, Shorty will be a little different at 100+ but that's for the track.
I want to enjoy the rest of my life being able to play, walk, snowmobile, etc.

 

[bulletpruf]

5.0 (302) based engines have a deck height of appr. 8.2"
5.8 (351W) based engines have a deck height of appr. 9.5"

The 351W fits under a stock hood. Your intake manifold is usually the deciding factor for generating clearance issues as it's harder and more expensive to swap out.

Look up Edelbrock and reference the height differences between the Performer and SuperVic intake manifolds. They both fit on 5.0 and 5.8 blocks but the height can make clearances to the hood super tight.

A 351 based block with an Edelbrock Performer and aftermarket fuel injection with a drop base air filter with an excellent flowing 2" tall classic air filter fits perfect. I have done several of these so this is a guarantee - lol If you end up with a small body lift to help with trans tunnel clearance and the other dozen things that a small body lift helps with then you are even farther ahead and highly recommended as it gives you call kinds of small clearance benefits.

Some good info here^^.

I'm going with a 302 roller motor for my '69 budget build, but I'm also doing a 1" lift to help out with NP-435 trans swap. Having said that, if you're comfortable with the issues associated with a 351W swap, then it's a no-brainer. More cubes = more torque and that's what gets things moving.

If your budget can handle it, Blueprint Engines has a great reputation for quality Made in 'Murica engines. You get a dyno sheet with your engine, so there shouldn't be any surprises when you start it.

Good luck with it, and post up some pics of your project if you have any.

Scott

 

[MitchE]

FWIW, I wouldn't trade the torque and reliability of my 351W for a 302. You can make a 331/347 produce similar numbers, but the 351W is going to do it for less money IMO. If I were to swap my 351W for anything, it would be a stroked 351W like a 393, 408, 418, 427, etc., with the 408 being a nice compromise between RPM and torque with the square bore/stroke configuration.

Given the choice, I would go with a 351. The 5.0 engine, look inside and my best discription is Dainty, delicate perhaps? 400HP is typically known as the point the block starts splitting in two as well. The 351 has the beef to be a truck engine. The Bronco is no fox body mustang, don't try to treat it as one. The basics of a 351 are just a much more solid foundation.

No. Pull the 5.0 out of the 92 and run it as-is, stone stock in the Bronco.

Only a fool would stroke an 8.2 deck small block Ford in a Bronco. There is plenty of room for the 351W. So why would you ever make the spend? If all things were equal, then a 331, or a 347 makes sense. But all things are not equal. You can get a roller 351W from a 96 F150 for $750. You HAVE a roller 302 from a 92 Mustang 5.0. It's not even a question.

And you don't want to put 400 Horsepower in front of a NV3550. If I did that, I would break it.
And you don't want 400 HP in a Bronco. You won't use it, you can't get it to the ground, you don't need it, and if you do ever get it hooked up...you can't steer it, or stop it.

Do youself a favor, and stop looking at magazines, and speed shops, and stop bench racing. Take all the money that you were going to spend on your stroker, and buy induction, exhaust, fuel management, fuel supply, brakes, and suspension. Build a solid, reliable, bulletproof and streetable 240 Horsepower. Then drive it like you stole it.

Let me assure you that it is vastly more fun to drive a slow car fast...than to drive a fast car slow.
That's my $.02.

THANK YOU. you justed saved me a few thousand!

As for finding a local engine builder, those are getting hard to do these days. Anywhere in the country. Can't help with your location.

 

[Jdgephar]

Pretty accurate:
"So, long intro to a simple answer:
1. More money than brains: Coyote 5.0
2. More time than money: 1996 Ford 351W.
3. I break shit, and like to go fast, and when someone is stuck, they call me: Blueprint 408W.
4. I ain't rich, and I need a Bronco that runs now: Mustang 5.0.
5. I need cheap reliable horsepower, I have no friends, and I don't want any: LS swap."

I did #4 on my '68, now doing #2 on my '72. The '68 is fun on the street and offroad for me. Can't wait to try out the 351. FYI, the 351 is replacing a 347 that threw a rod and broke the crank. Hard to say what broke first...oil pump shaft, front of the crank, and #4 rod were all broke.


Sent from my SM-G981U using Tapatalk

 

[bmc69]

Ah, James. You are right. Who would want 400 HP in a Bronco? 450 is better

The engine in my '72 EB MX racer dynoed at 480 or thereabouts, at 7300 RPM, and I used every last drop of that..often.

 

[RGBronco]

351W STROKER all the way! Just revived my 1972 Bronco with a "turn-key" crate
351W Stroker engine. Still in the break-in period. My vehicle pretty much matches
Sendero specs except for the comfort stuff like AC and power windows.

 

[Attac]

Just my .02. My first build I had to have a stroker. I talked to blueprint engines and they recammed a 331 to get me in the power/ torque range that I wanted. But the downside is that I have to run at least 91 octane and the stroker makes a lot of heat and I have done everything from March performance system, flow cooler water pump, largest radiator I could fit etc and on hot days in traffic I still start to hit 200+. I am getting east to pull it and put an explorer front on it I got from sandman a while back. Now on the other broncos I built I have put 306s both crate and one I built and they run nice and cool and don’t have to use high octane. I put a 351 in my buddies build and you have to make it go to 180. It runs very cool.
Bronco engine bays are not friendly about dispersing heat and the stroker just compounded that. Like a lot have said 351 is very good in broncos and if you have to have a stroker then make it a 408 and have a bunch of torque and HP.
Just my experience..

 

[nvrstuk]

Heat issue with a 331 shouldn't be an issue.

If I can keep over 600hp cooled the way I drive it on a 100 deg day - - cooling a 331is so much easier .

HP builds heat-simple.

Something isn't kosher if a 331 can't be cooled.

My best friends 454sbf Dart I spec'd 13 yrs ago cools on a 95 deg day with a single 12" electric fan. Yeah-really.
If he's pulling a 16 mile 6% grade on 90deg day nearby he has both 12" fans running and he's at tstat. Just fact here as the Dart blocks have more wall casting material and cool great.

 

[bronkenn]

If it is running hot, I believe there are other issues. I built a 331 and it runs plenty cool. When I first finished it, I drove it for a little while and it would get a little hot while idling around. I built a shroud for it, and it never gets hot anymore.

 

[bronco italiano]

No. Pull the 5.0 out of the 92 and run it as-is, stone stock in the Bronco.

Only a fool would stroke an 8.2 deck small block Ford in a Bronco. There is plenty of room for the 351W. So why would you ever make the spend? If all things were equal, then a 331, or a 347 makes sense. But all things are not equal. You can get a roller 351W from a 96 F150 for $750. You HAVE a roller 302 from a 92 Mustang 5.0. It's not even a question.

And you don't want to put 400 Horsepower in front of a NV3550. If I did that, I would break it.
And you don't want 400 HP in a Bronco. You won't use it, you can't get it to the ground, you don't need it, and if you do ever get it hooked up...you can't steer it, or stop it.

Do youself a favor, and stop looking at magazines, and speed shops, and stop bench racing. Take all the money that you were going to spend on your stroker, and buy induction, exhaust, fuel management, fuel supply, brakes, and suspension. Build a solid, reliable, bulletproof and streetable 240 Horsepower. Then drive it like you stole it.

Let me assure you that it is vastly more fun to drive a slow car fast...than to drive a fast car slow.
That's my $.02.

Lots of wisdom in this statement. When I was young enough to think I was right, I hadn't yet realized I wasn't old enough to realize I was wrong. Bronco frames/drivetrain/etc won't do well with massive power. My little rollerblock mildly build 302 (with Ford SEFI) put out 285 ft/pds torque at 2750 rpm. MORE than enough unless your doing serious off-roading/large tires/crawling etc.

 

[gmduncan]

No. Pull the 5.0 out of the 92 and run it as-is, stone stock in the Bronco.

Only a fool would stroke an 8.2 deck small block Ford in a Bronco. There is plenty of room for the 351W. So why would you ever make the spend? If all things were equal, then a 331, or a 347 makes sense. But all things are not equal. You can get a roller 351W from a 96 F150 for $750. You HAVE a roller 302 from a 92 Mustang 5.0. It's not even a question.

And you don't want to put 400 Horsepower in front of a NV3550. If I did that, I would break it.
And you don't want 400 HP in a Bronco. You won't use it, you can't get it to the ground, you don't need it, and if you do ever get it hooked up...you can't steer it, or stop it.

Do youself a favor, and stop looking at magazines, and speed shops, and stop bench racing. Take all the money that you were going to spend on your stroker, and buy induction, exhaust, fuel management, fuel supply, brakes, and suspension. Build a solid, reliable, bulletproof and streetable 240 Horsepower. Then drive it like you stole it.

Let me assure you that it is vastly more fun to drive a slow car fast...than to drive a fast car slow.
That's my $.02.

I guess I'm in trouble because I'm dropping in a new GEN3 Coyote mated to a 10 speed auto. I'm pretty sure the it's 460 HP bone stock,

 

[jamesroney]

I guess I'm in trouble because I'm dropping in a new GEN3 Coyote mated to a 10 speed auto. I'm pretty sure the it's 460 HP bone stock,

... you could have saved some typing if you had just said: "I'm a #1"

 

[gmduncan]

... you could have saved some typing if you had just said: "I'm a #1"

I rode the short bus, so help me with your comment to me, thanks...

 

[fordguy]

I'm a #4.

Todd Z.

I am with you Todd.

 

[jamesroney]

I rode the short bus, so help me with your comment to me, thanks...

I like the short bus! Most of my friends are on that bus. So you are in good company. But the decoder for the categories is in post #13 of this thread.

Coyote owners already have their own category.

The categories became necessary after I got flamed because of my comment in post #3. That's where I said:

"No one needs 400 HP. You won't use it, you can't get it to the ground, you don't need it, and if you do ever get it hooked up...you can't steer it, or stop it."

Of course, as soon as I posted it, every yokel with a stroker had to come out and proclaim their superiority. No point in arguing with people that are smarter than me.

But the fact remains. 460HP will push a 3800lb object to a speed of 114MPH in 11.77 seconds in 1/4 mile. NOBODY is driving their Bronco at 114 MPH. Now as soon as I remind people that they are not actually Producing 460 horsepower, (but they do produce a lot of noise and heat...) somebody will produce a video of @nvrstuk doing superman things with his Bronco, and prove me wrong.

 

[gmduncan]

I like the short bus! Most of my friends are on that bus. So you are in good company. But the decoder for the categories is in post #13 of this thread.

Coyote owners already have their own category.

The categories became necessary after I got flamed because of my comment in post #3. That's where I said:

"No one needs 400 HP. You won't use it, you can't get it to the ground, you don't need it, and if you do ever get it hooked up...you can't steer it, or stop it."

Of course, as soon as I posted it, every yokel with a stroker had to come out and proclaim their superiority. No point in arguing with people that are smarter than me.

But the fact remains. 460HP will push a 3800lb object to a speed of 114MPH in 11.77 seconds in 1/4 mile. NOBODY is driving their Bronco at 114 MPH. Now as soon as I remind people that they are not actually Producing 460 horsepower, (but they do produce a lot of noise and heat...) somebody will produce a video of @nvrstuk doing superman things with his Bronco, and prove me wrong.

Thank you and I really appreciate it. I was back and forth on what motor to drop back in my '77. Left a factory with a 302 but someone replaced it with a 351W. I said heck with it and went all in with the chips.

I'm too seasoned (older) to see how fast my Bronco will go in the 1/4 mile. I want a nice ride with a little umpf when I need to merge into traffic. Again, thanks for clearing things up for me.

 

[nvrstuk]

I don't care about the 1/4mile in my 5350# Bronco either but if you wheel with it you NEED it to get moving quickly sometimes and to be able to get 5350#'s moving takes grunt (& and lightening quick shifts & close gear ratio spreads in your trans so you don't fall on your face, etc, etc, etc)

Throw 40's on a 600hp Bronco and a Honda CRV can almost out accelerate you. Big tires & big weight literally annihilate HP. I'm not saying mine won't get out of it's on way but slap some 28"s on and I can't move as the tires are spinning so fast (btdt) been there done that & it's fun!
Last 3 Bronco events with sand drags & I've taken the honors each time but big tires eat HP. Gotta try it to believe it. Even with the top highway cruising rpms exactly the same as a 28" tire with 3.5 gears and 40"s with 5.13"s and an equal 2100rpm cruising speed at 70mph the 28" tall tire rig will smoke the 40" tired rig! Lot's of physics going on.

Fact.