Posted By: dartman366
383 based strokers - 12/20/13 08:43 PM
what would be a good package in a 3100# drag car and run in the 9.80-10.00 area, I have heard of a 430 kit and was wondering how they hold up compared to a 440 based package. 
383 based strokers
Posted By: Cab_Burge
Re: 383 based strokers - 12/20/13 09:04 PM
If your going to spend money on a crank why not step up to a 4.25 with the BB Chevy 2.200 rod sizes, that makes a 484 C.I. motor 
Or maybe a 3.91 stroke motor with 2.200 rod journals for a little smaller stroke 
the lighter(and much cheaper costs BB Chevy H beam style rods)rods and writs pins will help the motor RPM faster and slow down faster than the stock size Mopar rods will
Or maybe a 3.91 stroke motor with 2.200 rod journals for a little smaller stroke the lighter(and much cheaper costs BB Chevy H beam style rods)rods and writs pins will help the motor RPM faster and slow down faster than the stock size Mopar rods will
Posted By: 64Post
Re: 383 based strokers - 12/20/13 10:59 PM
I did the 383/3.90/6.700 Chevy rod combo. From what I remember, it ran pretty good for being at 6,000 ft.+… Trying to get it freshened at the moment.
I’d start with a 400 block and do a 470” combo at the minimum if I had the block laying around.
I’d start with a 400 block and do a 470” combo at the minimum if I had the block laying around.
Posted By: JohnRR
Re: 383 based strokers - 12/21/13 03:10 AM
Is this build going to be race only ? Is so I have a 450" 383 based kit with 12.3ish diamond pistons I'll sell ...
Posted By: Hutch
Re: 383 based strokers - 12/21/13 06:46 AM
Whats wrong with just leaving it a 383 with good rods and pistons? Spend a few bucks on some good heads and go. Mine runs 9.80-10.10 depending on weather in a 3100lb car every weekend. You have to buy some good stuff to rev them but they work quite well.
Hutch
Posted By: dartman366
Re: 383 based strokers - 12/21/13 07:27 AM
Yes this is going to be a race only deal, only problem is I will have to the Johnny Cash deal and do it one piece at a time in order to be able to afford to do it the way I want,, I figure I should get the heads first so I know what I am working with to select pistons and such,,,the only problem with a 400 block is availability, they don't seem to be any ways near as popular around here as the 383's are, plus I have heard the 383 block has always been a stout block.
Posted By: J_BODY
Re: 383 based strokers - 12/21/13 07:38 AM
....I've got a complete 72 400 sitting in a garage in central SoDak I need to get rid of. wish you were closer.
Posted By: dartman366
Re: 383 based strokers - 12/21/13 07:42 AM
Quote:yeah, me too.
Posted By: MR_P_BODY
Re: 383 based strokers - 12/21/13 07:47 AM
Quote:
J... maybe next year when I'm out there bird hunting
I can pick them up for you and bring them back to
the Detroit area
Posted By: Cab_Burge
Re: 383 based strokers - 12/21/13 09:24 AM
Quote:I haven't heard that about a 383 hopped up a bunch with a longer stroke crank like a 4.15 or 4.25
the only problem with a 400 block is availability, they don't seem to be any ways near as popular around here as the 383's are, plus I have heard the 383 block has always been a stout block.
I'm under the impression that all the production 383 blocks had the same main webbing as the 413,426W and 440 did, not thick like all the 400 blocks are Be careful on your parts selection 
Sometimes waiting a little longer to save for the better part is a lot better in the long run 
Posted By: 69dart
Re: 383 based strokers - 12/21/13 07:57 PM
My roadster has a true 383 and you know what it runs. Only 2100 lbs with me in the seat though. The issue with 383 strokers is there are no off the shelf high compression pistons so custom will be required.
Posted By: B3422W5
Re: 383 based strokers - 12/21/13 08:03 PM
Bill...are you thinking of getting rid of the smallblock you run now?
Hope not...would REALLY like to see you merely put a good set of heads on what you currently have, like the 230 Indy heads. At your weight with your 904 car would likely be even quicker than what your stated goals are.
Hope not...would REALLY like to see you merely put a good set of heads on what you currently have, like the 230 Indy heads. At your weight with your 904 car would likely be even quicker than what your stated goals are.
Posted By: 67mprfan
Re: 383 based strokers - 12/21/13 09:01 PM
Bill you are more than welcome to come and join the bb club 
your current combo does work good though
your current combo does work good though
Posted By: cgall
Re: 383 based strokers - 12/21/13 10:07 PM
RBDuster built a 470" low deck that has run 5.7's in the 1/8th in his K-car at 2400 lbs. Let's see if I can flush him out to post the details.
Posted By: dartman366
Re: 383 based strokers - 12/22/13 01:19 AM
Quote:Cab, what I ment was that I have never heard anyone have any issues with the 383 blocks cracking, blowing out the cylander walls or massive core shift like some of the other production blocks.Quote:I haven't heard that about a 383 hopped up a bunch with a longer stroke crank like a 4.15 or 4.25
the only problem with a 400 block is availability, they don't seem to be any ways near as popular around here as the 383's are, plus I have heard the 383 block has always been a stout block.
Posted By: dartman366
Re: 383 based strokers - 12/22/13 04:24 PM
Quote:No Don I have no intention's of getting rid of the 408, may have some different plans for it later or just keep it for a rainy day, I also have a 69-30over 340 block that I have been stareing at alot here lately, I plan on some day to build up a nice street toy just to cruise in and that will be smallblock power
Bill...are you thinking of getting rid of the smallblock you run now?
Hope not...would REALLY like to see you merely put a good set of heads on what you currently have, like the 230 Indy heads. At your weight with your 904 car would likely be even quicker than what your stated goals are.
Posted By: rbkt65
Re: 383 based strokers - 12/22/13 04:47 PM
we run a 438 in a 3000 lb duster at gateway, it has a racer brown stx22,untouched rpm heads and junk 750 dp. it runs 10.52 most of time. put a good ken jones 1050 on it at end of year and ran 10.32 3 passes in row. thinking of updating it to source 496. compression will be around 12.5 or so. should put car into 9s.
Posted By: dartman366
Re: 383 based strokers - 12/22/13 05:56 PM
Quote:what is your comp ratio in present form?
we run a 438 in a 3000 lb duster at gateway, it has a racer brown stx22,untouched rpm heads and junk 750 dp. it runs 10.52 most of time. put a good ken jones 1050 on it at end of year and ran 10.32 3 passes in row. thinking of updating it to source 496. compression will be around 12.5 or so. should put car into 9s.
Posted By: YYZ
Re: 383 based strokers - 12/22/13 06:02 PM
FWIW and not to hijack the thread, but I have some low deck stroker stuff that I no longer need due to a change in direction.
New Diamond 59150 stroker pistons for .030 over 383 - same ones used in the AndyF 383 stroker build
New Mopar American crank offset ground to 3.900" stroke, 2.200" rod journals done by a reputable crank shop.
If anyone is interested, please PM me. Pistons are easy to ship, the crank not so much.
New Diamond 59150 stroker pistons for .030 over 383 - same ones used in the AndyF 383 stroker build
New Mopar American crank offset ground to 3.900" stroke, 2.200" rod journals done by a reputable crank shop.
If anyone is interested, please PM me. Pistons are easy to ship, the crank not so much.
Posted By: MR_P_BODY
Re: 383 based strokers - 12/22/13 06:45 PM
Bill.. the only 383 based engine I built was a destroked
383.. high reving in my 69 Valiant (that was a
9000-10000 rpm engine) with a rock crusher trans
383.. high reving in my 69 Valiant (that was a
9000-10000 rpm engine) with a rock crusher trans
Posted By: junkyardmaxie
Re: 383 based strokers - 12/22/13 07:48 PM
Bill, craig still has 300 to 400 big blocks in the building. 383 or 400 any year ,no problem, complete or just the block, he will treat you right on price . also trans if needed .Bob
Posted By: RBDuster
Re: 383 based strokers - 12/22/13 08:53 PM
In talking with some informed engine builders the 383 block is as strong as the 400. The 383 smaller bore size does affect airflow compared with the larger bore size of the 400. I do like the idea of using the 383 as they are more plentiful than the 400. I am looking at putting together a 455, 496 383 based stroker for my next build just to try something different.
Posted By: dartman366
Re: 383 based strokers - 12/23/13 01:23 AM
Thanks Bob, guess I need to go see him.
Posted By: rbkt65
Re: 383 based strokers - 12/23/13 02:36 AM
sorry was cleaning garage trying to find stuff for swap meet/sale. compression is right at 13/1. this is really a very good eng. very responsive and all it does is go rounds when driver has head above and not eating candy bar at line. haha I would think about building my 383 into 496 or my 400 to 512 but my wagon will weigh 4000 lbs and I want try to run 10.50s on pump gas so going with 540.
Posted By: hudsonhornet7x
Re: 383 based strokers - 12/23/13 06:49 AM
Quote:
In talking with some informed engine builders the 383 block is as strong as the 400. The 383 smaller bore size does affect airflow compared with the larger bore size of the 400. I do like the idea of using the 383 as they are more plentiful than the 400. I am looking at putting together a 455, 496 383 based stroker for my next build just to try something different.
I am very interested in this as I have a good 383 that has been turned into a 431. I was always told the 400 was the be all end all for stock blocks due to extra beef in the mains area.
How does the 383 compare for strength? Not trying to be smart I just am very curious.
Thanks!
Posted By: max_maniac
Re: 383 based strokers - 12/23/13 07:08 AM
Quote:build up a nice street toy just to cruise in and that will be smallblock powerQuote:No Don I have no intention's of getting rid of the 408, may have some different plans for it later or just keep it for a rainy day, I also have a 69-30over 340 block that I have been stareing at alot here lately, I plan on some day to build up a nice street toy just to cruise in and that will be smallblock power
Bill...are you thinking of getting rid of the smallblock you run now?
Hope not...would REALLY like to see you merely put a good set of heads on what you currently have, like the 230 Indy heads. At your weight with your 904 car would likely be even quicker than what your stated goals are.
Yep --- thats what they are for
Russ
Posted By: B3422W5
Re: 383 based strokers - 12/23/13 07:35 AM
Russ...lol
Merry X mas and happy holidays buddy
Merry X mas and happy holidays buddy
Posted By: dartman366
Re: 383 based strokers - 12/23/13 03:51 PM
Quote:Quote:build up a nice street toy just to cruise in and that will be smallblock powerQuote:No Don I have no intention's of getting rid of the 408, may have some different plans for it later or just keep it for a rainy day, I also have a 69-30over 340 block that I have been stareing at alot here lately, I plan on some day to build up a nice street toy just to cruise in and that will be smallblock power
Bill...are you thinking of getting rid of the smallblock you run now?
Hope not...would REALLY like to see you merely put a good set of heads on what you currently have, like the 230 Indy heads. At your weight with your 904 car would likely be even quicker than what your stated goals are.
Yep --- thats what they are for
Russ
Posted By: GTX MATT
Re: 383 based strokers - 12/23/13 05:28 PM
In my opinion the "extra beef" in the main webbing of the 400 compared to the 383 is equivalent to the "extra beef" of the late 70s 440s compared to the earlier 440s.
Posted By: maximum entropy
Re: 383 based strokers - 12/24/13 01:59 AM
i vote long rod 438. a little easier to build in some serious compression, light pistons, and a really good rod ratio. that's what mine is gonna be. it would still be a rev monster.
Posted By: Mr.Yuck
Re: 383 based strokers - 12/24/13 03:10 PM
Quote:
Bill.. the only 383 based engine I built was a destroked
383.. high reving in my 69 Valiant (that was a
9000-10000 rpm engine) with a rock crusher trans
What's that sound like? I had a nice stock stroke 383 i ran to 7k from time to time but 9-10k.... 
Posted By: AAR-B4
Re: 383 based strokers - 12/24/13 04:01 PM
Quote:Quote:
Bill.. the only 383 based engine I built was a destroked
383.. high reving in my 69 Valiant (that was a
9000-10000 rpm engine) with a rock crusher trans
I think the clue here is "rock crusher trans". The 9-10k rpm was likely due to missed shifts.
