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View Full Version : 358 vs. 383



jeeper07
02-19-2007, 10:26 PM
http://www.caraudio.com/forum/showthread.php?t=215832

http://i36.photobucket.com/albums/e2/jeeped07/Whip/Picture030.jpg

Which will she become? im callin machine shops around me to find out who can help, but i need to decide first.

It sits as a 5.7 L V8, 350.
I have to decide if i want it changed to a 358 which is much cheaper and easier for me or a 383 which will give me around 420 hp.
Pics of the truck can be seen here as well as the ongoing log of work.
http://www.caraudio.com/forum/showthread.php?t=215832

jeeper07
02-19-2007, 10:45 PM
any one?

millerscents
02-19-2007, 10:47 PM
i would go for the 383 but that is just me

pitbull12888
02-19-2007, 10:47 PM
383. I had 1 rebuilt allready that had like 400 hp and i sold it and a rebuilt trans together for $500.

chris96camaro
02-19-2007, 10:49 PM
383 stroker FTW...

jeeper07
02-19-2007, 10:50 PM
i was leaning toward 383 really strongly, but its soo **** much

pitbull12888
02-19-2007, 10:51 PM
I know wut ya mean.. my engine will be about $2500-$3000 :(

Blazin_Jason
02-19-2007, 10:52 PM
Honestly unless you have a crank, or need to have yours turned, just bore it 30 over.

jeeper07
02-19-2007, 10:56 PM
thats what im thinkin as of now, but idk itd be nice to have over 400 ponies when i need them

Blazin_Jason
02-19-2007, 11:09 PM
I hear ya. I'm in a similar boat. I have a 350 block that I was planning on rebuilding for my truck. I wasn't going to go nuts on it, but just a few upgrades. I've yet to pull the heads off yet and determine what needs to be done. Then I ran into this LINK (http://www.usedvictoria.com/classified-ad/2566317&category=spare-car-parts)
which I can get for a little cheaper than that. (Canadian) He thinks it has about 425hp, but I dunno about that. It would be cheaper to buy his engine, which I'm still debating on.

jeeper07
02-19-2007, 11:11 PM
nice lookin engine. what truck?

Blazin_Jason
02-19-2007, 11:22 PM
85 s10 blazer 4x4

jeeper07
02-19-2007, 11:24 PM
4 wheel burnouts???

Blazin_Jason
02-19-2007, 11:27 PM
ha, not with stock diffs and 33's, especially with $1000 worth of rubber that is brand new. Well maybe a couple . ;)

jeeper07
02-19-2007, 11:28 PM
haha nice

ngsm13
02-19-2007, 11:28 PM
Honestly unless you have a crank, or need to have yours turned, just bore it 30 over.

Werd.

nG

jeeper07
02-19-2007, 11:30 PM
Werd.

nG

hey where r u at in cincy. i am about to go to school there

2loud4u
02-19-2007, 11:34 PM
4 bolt main?

jeeper07
02-19-2007, 11:35 PM
4 bolt main?

yes sir

2loud4u
02-19-2007, 11:36 PM
Just build a nice 355 you can easily get over 400hp

I have a 355 in a 1980 corvette and dynoed at 457hp

Ignatowski
02-20-2007, 06:36 AM
bigger is better........plus a little more stroke
offers more torque for that heavy truck,the cost between the 2 motors is neglagable
I would buy an Eagle assembly or similar and build it myself

Get the block bored to match the new pistons,new cam bearing,check the deck etc
freshen up the heads and have em upgraded to screw in studs and SS valves w port match
Cam and lifter kit from your fav cam grinder,all new ARP hearware
and buy the "How to rebuild your small bock chevy" book

Dood,with everything machined you can build it in a weekend in your garage

what yor budget ?Carb or EFI ?

I have done this only about a a dozen times for myself and friends

jeeper07
02-20-2007, 07:12 AM
bigger is better........plus a little more stroke
offers more torque for that heavy truck,the cost between the 2 motors is neglagable
I would buy an Eagle assembly or similar and build it myself

Get the block bored to match the new pistons,new cam bearing,check the deck etc
freshen up the heads and have em upgraded to screw in studs and SS valves w port match
Cam and lifter kit from your fav cam grinder,all new ARP hearware
and buy the "How to rebuild your small bock chevy" book

Dood,with everything machined you can build it in a weekend in your garage

what yor budget ?Carb or EFI ?

I have done this only about a a dozen times for myself and friends

wow thanks for the info i ll look into that book right now.

Ignatowski
02-20-2007, 08:39 AM
wow thanks for the info i ll look into that book right now.

U can easily make 450-500 HP:yumyum: and pull great vacume
Those heads should be Vortecs too=mega torque

Railrocker
02-20-2007, 09:01 AM
ok ive heard of a 350 and a 305 but wtf is a 355? Is it just a 350 bored a little?

Polecat
02-20-2007, 11:36 AM
350 bored .030 is a 355, .040 is a 357, and .060 is a 360.
I've had 350-406's, including seevral 383. In a heavy vehicle, torque is king. You don't have the high revving like a non-stroker motor, but you make gobs more low end torque.
If you have Vortec heads, I bet 906 castings, you'll need them rebuilt and set up for a decent cam, up to at least .500 lift.
Then a good street cam for a 383 is a comp XE268. Good idle, yet gives a broad range of torque, and you can use stock converter.
A 383 and be sure to use the 5.7 rods, do use the 400 shorter rods, get at least 5.7's.
No need for forged pistons, etc, just use hyper's.

Johnny Drama
02-20-2007, 11:37 AM
Make it a full roller stroker

jeeper07
02-20-2007, 11:38 AM
i think this has pretty much mad me decde on a 383 so far. ill give it a few more days tho

chris96camaro
02-20-2007, 11:40 AM
i think this has pretty much mad me decde on a 383 so far. ill give it a few more days tho

Of course we would decide on a 383. We're not the ones paying for it. If i had the choice of a 383 or a 355, I would choose 383 everytime...

The difference is, you are the one that will be paying for this, and whether or not you can afford it should make your decision.

jeeper07
02-20-2007, 11:43 AM
i cant afford it all now, but thats y i still have an engine in the truck so that i can drive it and work on it while still having an engine to build up. so i can take my time and get the funds together for it

Ignatowski
02-20-2007, 01:48 PM
do some more research,buy a few hot rod magazines
and come up with a budget.......
U might aughta redo some driveline components too,tranny,conveter(looser)
gears........to do it right many things come into play to do a basic rebuild
and swap is a little more boring but cheaper.......
the good news is a SBC is the least expensive motor to build with something for
every budget 1200 and up...
How fast ya wanna go = how much money u have

pitbull12888
02-20-2007, 01:50 PM
yea man.. its gonna take me a little while to build mine , they cost too dam much. But just take your time and do it right. And it will be worth it in the long run.

jeeper07
02-20-2007, 02:56 PM
yea man.. its gonna take me a little while to build mine , they cost too dam much. But just take your time and do it right. And it will be worth it in the long run.

thats the plan. thats y i got an extra motor so i dont feel the need to rush it. :yumyum:

B_Campbell
02-20-2007, 04:24 PM
396 =P or even better 402 =P

what heads and cam set up are you looking at?

pitbull12888
02-20-2007, 04:25 PM
572 :naughty: i think there like 650 stock hp lol, and $8000-$13000

jeeper07
02-20-2007, 06:19 PM
i got the engine completely torn down today....almost. and got my headlights in.
i cant get the lifters or cam out and idk how to. besides that shes ready!! air tools ftmfw!

Polecat
02-20-2007, 06:35 PM
your 'cheapest' way around it is to just build a 355 now. You have the rods, crank,and internally balanced stuff now. If you do a 383, you need a new flywheel and dampner too...
if funds are low, a good 350-400hp 355 always does good as well. Spend money now on good heads and fuel delivery, and machining. That's where your money will come into play.

ngsm13
02-20-2007, 07:28 PM
hey where r u at in cincy. i am about to go to school there

I'm at the University of Cincinnati...live here in Clifton.

I'm originally from Reading, about 15minutes NE of Cincinnati.




If you need any help, I've tore down two 350's all the way to the block. Just did what I was told though... lol.

I was a tool ***** during the buildup of this 355 ;)...

Started out high-compression running 104octane, then tore it down and rebuilt it into this...


http://upshizzle.com/gallery/albums/02.07/DSC00713.JPG

http://upshizzle.com/gallery/albums/02.07/DSC00126.JPG

http://upshizzle.com/gallery/albums/02.07/DSC00120.JPG


All done in a HUGE carbuilding garage ;)... friend of my dad's!

nG

jeeper07
02-20-2007, 08:26 PM
i dont even wanna ask how much that cost. im goin to mt st joes. heard of it?

jeeper07
02-20-2007, 08:26 PM
oh and the 350 is down to the block already im goin to get some pics now.

ngsm13
02-20-2007, 08:31 PM
CatLik school eh?

Yeah, I've done some work there for a job. We did all their floors.


nG

Ignatowski
02-20-2007, 09:07 PM
heres mine......a little larger than a 383 :D

http://img.photobucket.com/albums/v328/excelerater/Malibu/PIC_0007.jpg[/IMG]

jeeper07
02-20-2007, 09:41 PM
http://i36.photobucket.com/albums/e2/jeeped07/Whip/Picture005.jpg
cant get the lifters or cam out. gotta see what to do about that tomorrow

Ignatowski
02-21-2007, 07:15 AM
cant get the lifters or cam out. gotta see what to do about that tomorrow

sometimes lifters need to be pulled out with a slap hammer of sorts,or pryed out from the underside,once they are up high enough the cam will slide right out then you can flip the block and push out the lifters from the underside

you could leave them in there the machinest ,no biggie.....

heres a good place for rebuild kits

http://www.northernautoparts.com/ProductDetail.cfm?ProductId=148

they have good basic kits,from mild to more wild,talk to your machinist first
or go to the local speed shop - they have deals as well.....

jeeper07
02-21-2007, 07:34 AM
thats my problem so far, i cant really find a machine shop around me so far. I live in indy so id hope i find one here

Ignatowski
02-21-2007, 12:28 PM
thats my problem so far, i cant really find a machine shop around me so far. I live in indy so id hope i find one here

Indy has some of best machine shops in the whole country
and quite a few of them......Indy is the racing capital of the USA
and also where I had my engine built

jeeper07
02-21-2007, 03:10 PM
what company did u go through do u know? i dont know where to look i used the yellow pages but no one said they would do it. ik they are thats y im shocked i cant find ne one !

Skip01
02-21-2007, 03:23 PM
This is my friends 383 build he did for his Camaro....

http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=940815067

I have more pics but just did these for the vid...blew a head gasket and head now goin with some kinda Dart head dont know any specs or anything.

jeeper07
02-22-2007, 08:04 AM
i need to start lookin for good total rebuild kits. i want around 400 hp. still havent gotten ahold of a machine shop so idk if im goin 355 or 383. chances are im goin 355 and tryin to get as much out of it as i can.

dejo
02-23-2007, 08:25 AM
generally, a smaller engine will have to spin higher to make the same hp as a larger displacement engine. and rpm is what generally kills. I would go with the bigger motor.

Blazin_Jason
02-28-2007, 08:12 PM
I got some prices locally for some machine work. $75-$85 clean the block, $22 bore per cylinder, $55-$70 install cam bearings, $95 surface block, grind crank $160-$150, $15 resize rods, $9 press pistons to rods, balance $295-$350, then head work on top of that. Fully assembled parts included about $2000-$2500 block only, heads additional.

jonnybusa
03-01-2007, 12:05 AM
any one?


VERY EASY ANSWER. gO BIGGER. THE PRICE WILL BE IDENTICAL, AND FOR THAT SAME PRICE THE POWER WILL GO UP SLIGHTLY, BUT THAT JUMP IN TORQUE WILL WAKE IT UP QUITE A BIT OVER THE 355. ALSO, THE BIGGER MOTOR WILL TAKE TO A POWER ADDER BETTER FOR THE FUTURE, AS LONG AS YOU KEEP THE COMPRESSION REASONABLE.

Coolwazabi
03-01-2007, 12:07 AM
just get a 450 and call it a day :)

jaco
03-01-2007, 12:18 AM
a 383 stroker is a good torque engine i ran 1 for a season when i ran NMCA
( worlds fastest street carshoot out) and it was O.K. my favorite was a 377 400 small block with 350 crank but in your pick up a 383 will deff. be a tire fryer.
and there is alot more machine work involved with a 383 that to just boar your 350 to a 355 ect.
you have to take alot off the 400 crank main journals, and then notch the block.
the 383 will have alot more pep.
mine was pushing over 750 HP at rear wheels on dyno.
but ran on alky.

jaco
03-01-2007, 12:24 AM
also if you need any help or tips PM me i know alot about SBC thats all i ever drag reace with on the street and track.

just advice pick an RPM range and get every thing to match
cam, stall and intake should start pulling at the same RPM range.

Polecat
03-01-2007, 12:31 AM
a 383 stroker is a good torque engine i ran 1 for a season when i ran NMCA
( worlds fastest street carshoot out) and it was O.K. my favorite was a 377 400 small block with 350 crank but in your pick up a 383 will deff. be a tire fryer.
and there is alot more machine work involved with a 383 that to just boar your 350 to a 355 ect.
you have to take alot off the 400 crank main journals, and then notch the block.
the 383 will have alot more pep.
mine was pushing over 750 HP at rear wheels on dyno.
but ran on alky.
why did youj have to make adjustments on the main journals? A 400 crank will fit, and yes, you can either get pre-notched 5.7" rods, or clearance the block. Some, will require a small base circle cam. My first 383 didn't need it, nor the second. last 383 I was gonna build was a small base roller.

The problem now is finding either a good used 400 crank, or getting an afetrmarket one, like the SCAT, Eagle, Crower,etc
But 'basic' 383 kits are getting cheaper all the time, if money permits.

jaco
03-01-2007, 12:39 AM
it's around .004 that have to come off a 400 crank main jornal, and i'd stock with a stock crank, and a good H-beam 6" rodnormally the weak piont in a SBC is the rods.
so if you go forged then stick with a stock crank.
i never ran notched rods. i had a local machine shop do all my work.
reason for stock crank is.
if you throw a rod-, block ,crank rod and some times cam are all f*cked.
but if you make the crank your weak link then when it brakes usually it won't mess anything else up.
so just get another crank and re balance everything and go.

metalphreak87
03-07-2007, 08:03 PM
383 definitely my buddy had one in his elky and it was the sh*t

Ignatowski
03-09-2007, 06:20 PM
How fast do you want to run
How deep is your wallet ?

thats all that matters

jeeper07
03-20-2007, 01:57 AM
wallets not that deep but the build and or buying all the parts can take a while since i bought the extra engine. im still lookin for a shop to do my work so i can start finding prices

newsauto
03-20-2007, 12:08 PM
where is my money?

where are you?

you are a lier?

SCIVIC94
03-20-2007, 12:16 PM
Dollor for dollar u might be better off saving and getting a good crate motor with a warrenty.most times it will be cheaper and have have all the good parts.might be a more cost effective route for u.then just sell ur motor.