what are some good ways to get 400+hp out of a stock 351 windsor? with bolt-ons and stock shortblock

 

Forced induction.

 

Or NO2.

 

dont want to use either well maybe focred induction but i would like a h/c/i set up firt any one have any suggestions?

 

AFR heads, aftermarket upper/lower intake, larger throttle body and a cam. headers and exhaust would need to be done as well. this might put you a tad over but thats ok right. would this be for the rig in your sig?

 

yes
will all the heads made for 5.0s fit on a 351?
and can i still put an e cam in it or do i have to get a 351 cam?

 

yes the heads will fit if you get the bolt holes drilled out to 1/2" size.
an e cam sucks in a truck but work good in stang's. there are fare better cams available by calling compcam.

is this rig 2wd or 4wd?

 

it is a 2wd and is used to trive back and forth to work, take up to the lake, and go to the races on friday nights.

 

what type of bolts ons should i be running and what are some of you guys running with your 351s?

 

Bolt-ons are not head, cam, intake mods...

Bolt ons are anything you can bolt onto the exterior of the engine, like a throttle body spacer or maybe even electric fans...lil crap like that.

If it's EFI, you'll have to modify the system in order to get it to work. 400 out of a 351 is not a difficult task...some decent performance heads and a matching intake with a cam/exhaust like KemicalBurns said will easily put you there. Fuel system may need upgrading too, at the least it would need larger injectors.

 

im currently building up a 351, 1970 model with the bigger heads, hyperuetectic pistons, comp cams 4x4 cam, hooker competition headers, HO intake and carter carb. I actually am only figuring around 350 or so with this setup. its for my 84 bronco.

 

if im not mistaken the last time i checked heads are bolted to the engine and so is the intake.

 

Well, forced induction or NoX is about the only way that you are going to get a HONEST 400+ (as installed, with air cleaner, full exhaust etc, not a stand alone dyno run without a full exhaust and intake) hp from a 351w and STILL have driveability.

Of course you could go the big cam, tunnel ram etc route, but then it probably won't be the best in a truck because you will most likely end up with a RPM range of say 3500 to 8000 RPM. Not to really useful in a daily driver or a heavy truck. But fun on the track!

The other way is to go with a "electronic" engine, IE if you can vary the intake track / valve timing you can do quite a bit in the lower RPM range, at least in gaining back some usable torque.

I guess it depends upon what you want to spend and how you normally drive?

David

 

Like MuscleTruck7379's Build, I just assembled a 79 block with Speedpro Hyper flat-tops, Trickflow twisted wedge heads, Air gap intake, Comp Cams 4x4 .493/.512 lift .218/.226 Duration @ .050", 650 CFM Mech Secondary BG Speed Demon carb, 9.3:1 Compression Ratio, 1-3/4" headers, Balanced Rotating Assembly, and I am expecting an easy 350-375 HP. To kick it over the top I also have 125hp NOS Power shot(Small almost harmless-hee-hee). It should be very driveable between 1500-6000 rpm.
Total investment around $5000. ( Air cleaner to Oil pan including alot of extras)
Really not too Radical of a build.

Any Rate I think 400 HP is easy with out Power Adders like Blowers and NOS. with bigger heads and More RPM, Single plane intakes and more lift cam. All at the expence of driveablity, of course.

But since we are bolting things on to the block, Then stroker kits are to way to go. CHP is getting easy 500+ Hp Normally Aspirated out of a 427 Stroker.

Stroker kits are cheaper than Blowers and built to handle the power.

 

Last time I checked just about EVERYTHING on the engine is bolted onto the engine. Like I said, heads, cams, etc are NOT considered bolt-ons. I would recommend leaving the attitude at the door. Last time I checked it's not too smart to tick off the experienced ones who can actually help you build what you're looking for.

When people talk about bolt-ons, they're talking about easy and simple engine mods. These are the things people put on who don't know how to work on an engine but want more power and are able to do the little things. Power Pullies are another example of what is considered a bolt on.

Not true. This would be true if you were trying to use, say the stock heads and cam...but that would be foolish. You can use forced induction or NoX to make power out of a stock engine or near stock engine...

You can easily make 400hp N/A with a 351. We've already said how to do so. Driveability is not a problem, esp with EFI.

You don't need to go with a huge cam, a tunnel ram intake, or anything major like that to reach 400hp.

A 351 head that puts the power up between 3500-8000 rpm is not a head we're talking about. That's a HUGE head, like a 225cc. I'm talking more like 185cc where the tq peak would be around 3500-4000 rpm, with power between 1000-6000 rpm.

You don't have to be so concerned about the tq peak with this engine because it'll make pleanty of low end torque regardless since we're not going nuts. On a 302, heck yea you have to be but on a 351 it's got a long enough stroke that it's ok.