stroking a 350

[jgh64pkup]

im looking for something pretty radical i want to run in the 11s somewhere
maybe set it up for a supercharger later on

[Marv D]

Make a plan, set a budget and move forward in ONE direction. Building something 'pretty radical' and 'supercharger later on' doesn't even belong in the same thought! A blower motor is going to be built with around 8.0 to 8.5:1 compression. It's the only way to keep it alive once boost comes up. A heavy hitter small block capable of putting one of these bricks in the 11's n/a is NOT going to happen with 8.1 You will be running a completely different combination of piston, cam, intake, valve spring, echaust, convertor, and gear between a n/a motor and a blown motor. So I again say... pick a HP target, pick a budget (and double it ) and THEN you can make some serious decisions.

[jgh64pkup]

what about a 10 to 1 383 with a 150 shot of nitrous

[ProStreet71]

I was playing around with the horsepower calculator on TCI's website and found this..... Assuming your vehicle weighs 4000 pounds you would theoretically run 11.56 with 500 HP. I do not know how accurate this is but it might give you some kind of idea on what kind of HP goal you want to set. You first need to set a realistic budget because this is most peoples limiting factor. 500 HP is not easy to get on a tight budget. Nitrous is the least expensive way to go, but you need to make sure you have a good foundation that will handle the nitrous. Like Marv said, Pick a plan and a budget and follow it. After you've done that, most of these guys on here would be glad to help you.

[z400rider8787]

I am doing pretty much the same as you but i've already done all the research. 11 seconds is fast, REALLY FAST. almost too fast for the street. If you want something that is streetable and still hauls ass the 500HP mark is about the max. I've got a 4 bolt 350 block that im gonna build as follows....
355 CID
forged crank
h-beam rods
9.75:1-10:1 compression
forged pistons
pro comp aluminum 210cc heads
2.02 1.60 valves
.600 lift springs
Roller rockers
edelbrock RPM intake
750 holley
and either:
lunati voodoo hyd. cam 233/241 dur .504/.525 lift or:
comp thumpr hyd roller 243/257dur .533/.519 lift
150 shot nitrous

the lunati will give me 460 hp and the comp will give me 530 hp according to my dyno program, which is pretty accurate. the only toss up is between the roller cam or flat tappet. i obviously get more power with the roller but it costs about 3 times as much. the 530 HP roller motor should put me into the 12's on the motor and maybe high 11's if i can get it to hook up and lighten in a little. if you built a 383 with the exact same setup you probably get high 11's easily with nitrous assuming your tranny is built right and you can get traction, and still remain fairly streetable. hope this helps

[jgh64pkup]

thanks im still not sure what im going to do
i guess ill just have to make up my mind

[Irishpilot]

I agree with the 383 stroker using a 350 block. If you use other blocks like the 400, you can go with bigger cubes and the same reliability. However, the best bang for your buck is going to be a 383.

As far as forged versus cast cranks & pistons, if you can afford forged then go for bad, slap on FI (forced induction) and run with 800+ hp. For the rest of us who don't have unlimited funds, cast cranks are great and will take abuse on the occasional 1/4 pass. However, if you plan on running boost later, then forged will keep you safe.

If you want to run 87 octane, then 9.5 on aluminum heads is max. I run 10.6 compression on my aluminum heads, but I run premium. No pinging and it has mild street manners. Take a point of cc off for using iron heads.

450-480hp on a 383 with aluminum heads is what you can expect.

460-500 hp on a 400 with alum heads.

Realize that stroker motors make their money on off-the-line torque...that's what our trucks need!

[jgh64pkup]

thanks what size heads do you think i should use for a 383
about 480hp or so

[ProStreet71]

My pick would be the Air Flow Research 195's. If you dont go with those I would look for something with no more than 200cc runners. Dart and Trick Flow also make decent heads. But for the money nothing compares to the AFR's IMO....

[jgh64pkup]

what about rhs

[BossHogg69]

Originally Posted by ProStreet71

My pick would be the Air Flow Research 195's. If you dont go with those I would look for something with no more than 200cc runners. Dart and Trick Flow also make decent heads. But for the money nothing compares to the AFR's IMO....

100% agree - most people make big mistakes here with the 'bigger is better' on the heads and cam... I'd stay around 195 or 200cc on a 383 that's not an all out race motor. You want to find out how much cfm you'll need to hit your hp goal, and find a head with the smallest port volume that meets that number. meaning, sure you can find a cheap 210-220cc port head that flows well, but I'd be willing to bet that an AFR195 will flow just as much and still offer plenty of low end and midrange torque that the big ports won't have.

[vegaschevy]

Originally Posted by jgreene0717

Here is a link to Chevy HI-Performance about stroker motors.
http://www.chevyhiperformance.com/te...ker_motor.html

thanks for the info, it helped a bit with me getting ready to build my motor.

[jgh64pkup]

so what kind of intake and carb should i run

[z400rider8787]

hey jgh, where did you get your seats? and how much were they?

[z400rider8787]

as for intake and carb i would either go with a edelbrock RPM air gap or a victor jr. if you want a little more top end but sacrifice some torque. as for carb, a good holley 750 squre bore would be a good start, great tunability but not too touchy like the dominators and similar "race" carbs. you can also get them with a choke if you so choose to make it more street friendly but my stance is F$#( the choke it robs power, if i need to choke it ill have my girlfriend put her hand over the primaries

[jgh64pkup]

the seats came out of a 99 expedition eddie baurer (however you spell it) edition
i got them covered at a local shop about 8 miles east of me in ranger texas by a guy named rojelio
i recomend him
it was very decent for the price(80$ a seat)
i curently have a performer rpm but i want an air gap
what about a quik fuel 750

[ProStreet71]

I have a Quick Fuel carb and am impressed with it. I suggest that you call Quick Fuel and order your carb direct from them. They will need all of your engine specs and vehicle specs, but they will get the carb dialed in pretty damn close for your application. They have test engines there to dial it in. And it doesnt cost anymore and comes with a build sheet.

[jgh64pkup]

cool how much do they charge to tune it

[ProStreet71]

no charge

[z400rider8787]

ford seats huh? i wont tell anyone lol... were they pretty hard to install in your truck? im thinking about buckets in my truck to lose weight and make it look a little more pro-street style while still keeping a showey look, i might consider those seats, i really like em. by the way SOM is awesome! my truck is gonna be that color or something simmilar... maybe brigher, with black rally stripes.

[jgh64pkup]

yep ford seats
they are very comfortable
they are pretty much bolt in you have to drill 4 holes for each seat but the mounts work
what kind of truck are you putting them in
im going with a yenko theme on mine

[jgh64pkup]

alright i have a chance to buy a set of late model heads off of a 94 350
they're not vortechs but they do have 1.94 1.50 valves
i can get them for 150 bucks
should i get them they have been cleaned and reasembled with new valve seals
they have never been run and i watched them put the heads together

[jgh64pkup]

the casting numbers are 14102193

[ProStreet71]

Not for the power that you are looking for. That is a stock head, hence near stock power.

[shortbed70]

If your going to doo 400+ use a 400 block and have the reliability. The things you have to remember about these exotic builds there to make HP\TQ not 100000 miles reliability. Also with the bigger bore of the 400 building a 408 you will be side loading the pistons less and spend more time making power than replacing parts. I would bet money on it a 408 with a 400 block compared to a 350 block built 408 the 400 block will make more usable power.