Hey guys. I'm still new to these trucks so I'm learning what I can. I have a '92 F-150 flareside automatic with a 5.0L 302 in it, 3.55's in the rear end. I'm getting ready to rebuild the engine and I want to know what kind of power I would need to make to solidly be in the 13's quarter-mile wise? I'm looking for 13.8's or so. How much hp will that need? I'm assuming around 400 hp, so it looks like I have my work cut out for me.

I will be using a B&M 144 series blower. I have one laying around so I might as well use it. What kind of power would I be making at 7 psi? For now, I know I will be using that blower and some Flowtech long tubes. I guess a cam and rockers will be the next area to address.

Also, what kind of power can stock internals handle?

Thanks for any help.

 

I'm not sure what the compression is on a 302, but I would bet it would need to be lowered for that blower.

 

Na. People supercharge stock mustangs and trucks all of the time.
If I was going to rebuild the engine I would go with a forged crank and pistons with aftermarket rods. Also good to have it internaly balanced. A good set of flowing heads. Lower gears with posi trac diffrential. You should be in the 13's

 

Well I'm gonna stick with the stock 3.55's for now since I am doing some highway driving every week day for the time being. Eventally I'll throw in some 4.10's when the highway driving cuts down.

How much boost should I run with the charger? What can the stock internals hold? I'm trying to get by without replacing them if I can. The ones I have now are remanufactured, so they are like new condition of the factory specs.

With the supercharger, mild cam, rocker arms, and full exhaust with long tubes, how much power would you guys think I could be making? I may do the MAF swap as well.

 

I'd like to know how much the stock tranny will take too? I plan on leaving it stock other than a trans-go shift kit.

Also, how much would it cost to get my heads ported and polished by a local shop? Would it be worth the hassle over new heads?

I'm trying to spend the least amount possible, but not cheap out so much that it is unreliable.

 

U probably want to re route the stock air intake so its colder air, RAM air if possible maybe on the hood... definetly open up the exaust

is it possible to change it to the 351 firing order? im not too sure how well the 92 302 adapts, i know my 1994 uses 351 firing order..

permormance ignition, new rear end for accel, all the things stated already lol but hey doesnt hurt to restate

post some pictures if u can i love the flaresides, as i own one and id love to see it!

 

for good flowing heads check out www.thumperoforangepark.com...he's got good flow numbers and decent prices...you can get them bare or completely assembled....and they're all E7TE heads...which on m 95 Flareside is what I've got and I'll be getting a set from him pretty soon.You should be pretty good to stick with the stock 3.55's but I'd switch to 4.10's later on.Mine's got 3.55's that I swapped in from 3.31's....made a huge difference in the the entire band range.What I did to give mine a firmer shift ....mine's an AODE mind you .....on the harness going to the tranny there is a grey wire with a red stripe.I spliced into it and made it so I can plug it in for it to shift like stock or I can unplug it......my trann actually runs along better and it shifts so hard that even with my very few mods it'll kick it sideways in 2nd.Bloodhounds right...if you wanna run some good boost balance everything and get some stronger guts...not to mention some rings that'll handle the compression.DEFINATELY convert it to Mass Air...it'll help you out in the long run and let things run smoother.Considering our truck came with somewhere between 185 and 205 hp (depending on where you get your info) it's safe to say you'll notice a hella difference in the way she goes.I'll be building my 5.0 here pretty soon....I ain't gonna be slappin a blower on it tho......but it should be pretty quick when I'm through.have the tranny built well heavy duty everything get a bigger valvebody and a shift kit in it change out the gears and add the goodies and I could see maybe 13's or low 14's.....sure like to know what mine runs but I haven't been able to get to a dyno or the track yet.....be interested to see what my bolt ons thus far have gotten me...other than a few ricers and hemi's in my rear view......

 

i hope yours isnt 4X4, its a REALLY bad idea to put a blower on a 4X4, wont handle the blower very well

 

Why would a 4x4 not handle the blower? I could see not wanting to make a drag racer out of a 4x4 because of all the added weight, but what does 4 wheel drive have to do with handling the blower?

 

Nothing that I can see. The only drawback to a blown 4x4 would be it taking a drink of water. That is the only reason that I havent blown my 88. I guess if you ran it to where it would get good air it would be alright. Besides diesel are turbo charged.

 

how many miles on the stock tranny? and without a diff you're not going to get off the line.

 

What do stock 1st gen Lightnings run in the quarter?

 

I don't know for sure but I'd think somewhere around 13.5's......my buddy's runs 11.5's(withouta cage 10.8's if he had one) but it ain't exactly anywhere near stock either.....You're tryin to squeeze a gallon of juice from a piddly little orange.....you can do it on a budge but you'd be better off with more funding......you definately need to get some rear gears for it....I'd like to see some pics too as I've got my 95.....find an inlet tub running from the filter box to the front of the truck off of a truck with either a 300-6 or a 460...it runs up behind the grill.....did that to mine and it runs better and keeps the torque coming......if you want a badass setup..........checkout Mr. M's profile...he floats around but he made a killer airbow from sheetmetal and he's got a lot of good pics.My 5.0 has an older 351 firing order if that's what you're referring to neXtras.....might yours also read 13726548?older windsor number but newer 5.0 numbers.....

 

Like you, I've been thinking about doing some performance stuff to a '92 Flareside that I've recently aquired. If you are going to redo the crank and pistons, you might consider the 331 stroker kits. They don't require any block mods and add substantial torque. With the right rods and pistons I understand that the cylinder wear is not much worse than stock. They're a little pricey, tho.

 

About two runs at full throttle. You are going to have to spend money to go fast.