383ci-350ci comparison?

[grim_reaper888]

what is the real difference in a 383 stroker to a 350 besides cubic inch and the stroke being changed (im talking how it runs difference)? i was wondering how much you gain by using the stroker kit. i am getting ready to build a new motor for my s10 and always wanted a 383 for it. i can get a complete 383 in pieces for $1000, it needs a new cam, bearings, and rings. my local machine shop said he could build me a pretty wild 383 (400hp or so)for about $2600 with aftermarket heads. this includes everything but the carb and distributor. or would i be better off just building a 350 with some decent heads? this is open to any opinions please.

thanks for looking?

[adh383]

the 383 will give you a lot more bottom end torque

[Scotty_S-15]

Short answer:

Here's the way I see it: Let's say the combination you're looking at for the 350 will make about 435 HP. That's about 1.25 HP per cubic inch. Soooooo, using a similar combination with the 383 (combination tweaked up as needed for the addn. cubes), you could expect 383 X 1.25, or about 475 HP. Bottom line, about 40 HP for the additional 33 cubes. (or 33 X 1.25 = 41)

............ another "dumb" way to figure it is: 383 divided by 350 = 1.094, or about 9% power increase.

........... We can argue all day about the how the 383 has addn. torque, the bore/stroke ratio, power bands, etc. But let's not. http://www.s10v8.com/images/smilies/icon_razz.gif http://www.s10v8.com/images/smilies/icon_wink.gif For the short answer, see above. http://www.s10v8.com/images/smilies/icon_smile.gif

[batchik2]

theres always the fact of "theres no replacement for displacement."



but the way i see it is if you want a 383, build it.



for a street car i don't think it would make a hell of alot of difference. you can make up the power in heads/cam/intake ect.... it just gives you alittle extra and plus, it sounds cooler to say "ive got a 383" than a 350. lol

[stroker1]

In my opinion it's a no brainer. UNLESS you do a budget build and reuse stock 350 components you would be foolish if you do not go bigger. As far as aftermarket parts, its just as cheap to builld a 383 as a 350.



Stroker1

[grim_reaper888]

it does sound cooler, i think i will definatly build one, that way i can shave some off the price off expensive heads.

bottom up is what i should do anyway

thanks for the info.

[BrandOmatic]

Looking back, i wish i would have built a 383 instead of a 350, considering i bought a new crank, rods, and pistons. but it was my first engine build, and i didn't want to have to worry about clearancing the block to clear the rods. at the time i didn't have a die grinder or air compressor to run one(still don't) to clearance the block. meh, there's always next time.

[Knanthrup]

Yeah it really breaks down to more cubes equals more power no matter how you look at it. I played around with a lot of ideas for replacing my 350 like a 383 or 377 (destroked 400) but when I really did some research on it, the bottom line is that the more cubes the better and in any case a 400 block is the best place to start and go 406 or so.



If you have a set up for a 383 already then by all means go for it. For me the main factor is cost and so I stuck with a 350 until I can afford something better. When I do it all over and start from scratch it will be based on a 400 block though.



Really the only exception I can think of would be for specialty applications where maybe you are displacement limited in a racing class or if you are racing circle or road courses where you need more RPMS to work and you must build the rotating assembly to work reliably accordingly. But in the case of drag racing (if thats your focus) its all about cubes.

[kreinhederta]

I agree that the next one will definitely be started off with a 400 block and at that point do you de-stroke it for a 377, go 406 or all out 434? Always questions..... I think alot of times when any of us start these projects we initially don't know exactly what we want to do with the truck, ie: street, street/race or all out race so when we are so called done we are re-thinking the next step. At least I know that is where I am alot. Even though she moves right along I always want to go faster. So what I say is start with a solid bottom end and that leaves you room to grow as you want to or can afford to. Like me one day I'll go to a bigger cam, single plane intake and larger headers. Until then I'll just keep abusing the "taxi" motor.

[grim_reaper888]

im really just gonna take this out on weekends as a toy, maybe some stoplight drags, no strip time. so i think 383 will be as big as i go. yea money is a pretty good factor, thats why i am trying to sell my 98 s10 with the 383 thats in it to build one for my 85 jimmy. so i can take the family out with me. plus i relly want a five speed behind it, so i have an nv3500 ready for it.